Point Of Reference: The Standards Of The Geneva Seal
Quality, craftsmanship, and reliability; these are the three things that everyone wants when shopping for a new car.
It is also what car commercials whisper as artistic shots of the car driving down an empty and slightly wet road are shown.
When someone buys a very expensive machine that will hopefully be around for a significant portion of one’s life, car marketers understand the benchmarks that should be considered first.
So why is it that when another very expensive machine, a wristwatch, is advertised, does the marketing sometimes revolve around heritage, passion, rarity, and other things not really related to the inherent quality of the watch?
Not all advertising is the same, of course, and some of it does communicate at length about the craftsmanship that goes into such pieces. But very often the details about exactly what does make one watch better than others is woefully underrepresented.
This is where certifications and seals come in.
Over the history of watchmaking, governing bodies have sought to codify what makes a watch worthy of being considered “the best.”
Between C.O.S.C. (Contrôle Officiel Suisse des Chronomètres) and ISO (International Organization for Standardization) standards, the Poinçon de Genève (Geneva Seal) and the Fleurier Quality Foundation certification, to the new METAS Master Chronometer certification and the various brand-specific seals and certifications, there are clearly many ways to prove a watch is magnificent.
But unless you have read the literature or are very well versed in the technical aspects of watchmaking and manufacturing, you are unlikely to know what they all all mean.
So today I, your resident nerdwriter, will take one of the oldest and most widely known certifications, the Geneva Seal, and dissect it so we can have a complete look into what constitutes a watch worthy of it and why it matters.
The Geneva Seal is very old, having been proposed on November 6, 1886 by the Grand Council of the Republic and Canton of Geneva as a way to certify a level of quality for which the canton was becoming known.
The purpose was twofold: to ensure that the Geneva name and trademark proved the origin and quality of the watch and to encourage talented watchmakers to stay in Geneva instead of taking their talents abroad (as was beginning to happen).
In the last few years, the requirements for the Geneva Seal have been adjusted and updated, with a major overhaul in 2011 and another adjustment in 2014. These additions have taken the seal into the twenty-first century to create a level of certification and exclusivity worthy of notice.
While the Geneva Seal has found competition from other strict certifications, it is the only certification that is indicative of and limited to the canton of Geneva, the famed epicenter of Swiss watchmaking.
The process for obtaining permission to use the Geneva Seal is rather straightforward but also very labor intensive, though not every watch bearing the seal is required to be inspected by the office of the Poinçon de Genève after the initial certification. Most of that is carried out by each respective brand’s personnel in a dedicated office of the manufacture.
The process begins with an application to the Foundation Council of the Geneva Laboratory of Horology and Microengineering to be considered as a candidate for use of the seal.
This organization is now under the umbrella of Timelab, where the inspection, certification, and marking of the seal take place. To even be considered for application there are base requirements to meet: only mechanical movements and modules crafted to the highest standards are considered while the assembly, adjustment, and casing up must take place within the borders of the Canton of Geneva by a company registered with the Trade Register of the Canton of Geneva.
You may notice that these requirements already allow for any and every component to be physically fabricated and finished outside of Geneva, and when reading the language, possibly fabricated anywhere in the world.
There is no requirement for the actual construction of components to be limited geographically, only the final assembly and adjustment. This allows a brand to hold an office and assembly workshop inside the canton while the rest of the manufacture is actually offsite.
Since manufacturing facilities tend to require larger spaces, this is a very cost-effective way to be based and registered in Geneva without needing to own extremely expensive square footage.
If a brand meets the base requirements it can submit a movement (and corresponding watch) for assessment and approval. It must provide a complete set of technical 2D drawings, all of the individual components and/or modules, an assembled movement, and all external components (case rings, pushers, screws, and other case components) to be judged for adherence to the outlined requirements.
Once a movement is approved, the brand creates a “reference kit” of all the components plus an assembled movement (essentially two movements) that become property of Timelab and can be used as reference for future audits and in the case of a dispute.
Timelab then drafts an approval report to be given to the brand outlining the details of the approval. The process usually requires around two weeks to complete.
From there, it is chiefly up to the brand to certify each movement at various points throughout the assembly process. Which means that each component and the overall requirements are compared to the standard to ensure that the pieces are identically finished and the watches perform as similarly as possible. This is overseen by Timelab with periodic inspections.
It is here that a dispute may arise; the reference kit is used to provide a baseline for comparison and stands as the authoritative proof of quality.
But none of this actually tells us what the requirements are, how they are applied, and what it means for a watch to bear the Geneva Seal, so let’s break down all of the requirements and what it means for the movement and watch as a whole.
The requirements to qualify as worthy of the Geneva Seal
The requirements mainly have to do with how each component is finished and to what level each finish must be taken. Over the years there have been rewordings and adjustments or additions made to coincide with the technology and processes used in the industry.
The largest update occurred in 2011 when a significant amount of new language was added, as well as the entire idea of testing the movement while in a watch case, testing the case itself, and verifying performance criteria suitable for a chronometer.
Obviously those ideas were nothing new in the industry, but the inclusion resulted in the Geneva Seal becoming reinvigorated and worthy of pride as a defining certification that only the best of the best could achieve.
As we walk through the latest requirements for the Geneva Seal, I will point out where it might differ from the past requirements for an important reason. I have put the actual wording of the requirements italics and follow that up with my assessment of what it means for the components.
According to regulations, all visual inspection of components is carried out under 4x magnification. If something is unclear then up to 15x magnification can be used for verification.
Base plates and bridges
It begins with base plates, bridges, and plates for additional mechanisms. Since these components are some of the largest visual pieces in a movement, every surface is required to be finished in some manner and all machining marks removed. These components must have:
- Polished chamfers: The top edges of every plate or bridge must be chamfered and polished. No requirements are made for how they are to be chamfered or polished, which technically would allow for machine-chamfered edges that are polished manually afterward.
- Straight grained sides: The vertical surfaces of every plate or bridge must be brushed or finished in a way that creates consistent horizontal graining in the surface. Most commonly, this is accomplished with a rotary tool and an abrasive cone or cylinder.
- Circular graining or finishes that eliminate all machining marks: Circular graining, also called perlage, is the old standby for wheel recesses, bosses, undersides, or other intermediate surfaces, but this wording allows for any suitably fine finishing that will eliminate tooling marks from a movement plate or bridge.
Theoretically this could mean straight graining, bead blasting or applying a satin finish, polishing, black polishing, guilloche, or a variety of other creative ways to finish a surface that looks particularly nice, consistent, and removes all traces of manufacturing.
- Smoothed down bridge supports: The surfaces of the bridge supports must be flat and sanded, filed, or finished to a degree to remove machining marks and provide a consistent finish. This is to make sure that every surface is touched, but the wording is vague on what exactly it means for the level of finishing.
- Polished bevels in holes and recesses: All of the holes, be they threaded or through holes for screws, must have beveled edges that are polished to the same degree as the bevels around the plates. Other small recesses must have polished bevels as well, though that is slightly redundant considering the first point.
- Polished sinks for jewel holes: The jewel holes must also have beveled edges that are polished, though the inside of the hole has no requirements as the jewels are friction fit. Therefore the precise size of the hole is critical to function and would be difficult to finish to an accurate size.
- The tops of bridges must be finished with Geneva stripes or any other decoration that eliminates machining marks: This is similar to the requirement for circular graining earlier. While a specific method is called out, the rest of the statement opens up the possibility of numerous finishes that may not be considered traditional but nonetheless fulfill the requirements as stated. In this way you could have a very modern style while achieving the fine finishing the Geneva Seal requires.
Roger Dubuis is a good example of a brand that pushes the boundaries of design and finishing yet fully complies on a majority of its models to the Geneva Seal requirements. The key is fine finishing, not a specific style, so as long as every surface of every component is treated with intent and craftsmanship, there is a good chance it will meet the finishing requirements for the seal.
Next up are shaped parts and supplies including screws, pins, strip or jumper springs, and actuating levers or cams. Any part that does not fall into the category of the balance and escapement, wheel train, jewels, or plates and bridges probably would fall into this category.
A chronograph would have a large number of parts covered by this category, which also means a variety of part styles that may not be able to be finished in the same ways. For this reason the category has one general clause and the rest are specific to certain parts. These components must have:
- Polished chamfers, straight-grained sides, and smoothed down supporting faces, and the visible faces must be levelled or finished with any other decoration that eliminates machining marks. This need not apply to functional parts: This covers a majority of the parts in this category and follows the requirements set up for the larger plates and bridges. Again it is rather broad and allows a variety of decorations and finishes outside of the chamfers and grained sides.
- Screw heads must be polished or circular-grained with chamfered edges and slots: While small screws might not seem very important, poorly finished screw heads completely distract from great finishing elsewhere. The devil really is in the details.
- Domed screw heads must be polished or circular grained: This requirement seems almost superfluous but was probably added to make sure to cover the variation of screw heads that are used in the industry.
- Coloring is permitted provided the finish conforms: This could be regarding screws or all components and would allow heat or chemical bluing of the screws or components, as well as any of the various coatings that can be applied (PVD, CVD, DLC, etc.) as long as the previous requirements have been met. Again, the goal is to eliminate machining marks, not specifically dictate how every part has to look.
- The end of the screw foot must be polished and have no trace of its detachment: This might be one of the most minor places to focus on in a movement, but the goal is to leave no surface plainly finished or unfinished (unless necessary for function). Considering how many screws can end up in a movement, this small requirement would actually take a fair amount of time to comply with.
- The flat or domed ends of pins must be polished: Alignment or fixture pins for bridges, cocks, plates, and other components are terribly tiny most of the time, but the ends of the pins are visible throughout the movement and therefore get treated with the same attention as the rest of the movement.
- Mechanical and chemical trimming and polishing procedures are allowed as long as they respect the criteria concerning the shape and appearance of surfaces: This is another allowance that shows how fit and finish are placed higher than the process used to fabricate the parts in the first place. The addition of this wording can go a long way toward allowing fully machine-made and partially machine-finished components into a movement bearing the Geneva Seal as long as they do not look out of place. Technology is not the enemy of the Geneva Seal, and allowances like this one show that the governing body agrees.
- If a part is shaped by folding, this must be rendered undetectable using a suitable and approved finishing operation: This requirement actually builds on the previous one in that it does not seek to prohibit different means of manufacturing components, but instead ensure that the results match with the rest of the movement regardless of manufacturing technique. This also allows the freedom to develop new ways to make things while still maintaining the quality and rigor of the Geneva Seal.
- All parts that are not mentioned in the technical regulations must comply with the requirements laid down in the homologation of the caliber: This should probably be the last requirement listed simply because it sums everything up by stating that if anything isn’t mentioned, just make it match everything else in the best ways possible. This also leaves tons of room for design choices and the inclusion of yet-to-be-invented components in future timepieces.
Inside this category a specific component is also focused on: the strip and jumper spring. These components require a bit of different thought when it comes to finishing.
- Wire springs are not accepted: This is one of the more rigid rules for a component across the requirements as it specifically prohibits a very common component of low-end watches. Simple wire springs are seen in cheaply made movements because they can be cut and shaped quickly from a roll of stock with no further processing. This requirement forces time and effort to be put into the design, fabrication, and implementation of strip and jumper springs.
- The entire edges of strip springs and jumper springs must be chamfered; this need not apply to functional parts: Basically the entire base of the spring, where it mounts onto a plate, must be chamfered like the rest of the movement (though there is no mention of polishing, which I assume is simply an oversight), except where it gets thin and actually does work because . . .
- Any operation on a strip spring of 0.18 [mm] thickness or less that could be detrimental to the functional stiffness of the spring may be waived: The super-thin sections of the spring clearly don’t need to be, and shouldn’t be, chamfered when they are less than half a millimeter thick. This allowance is in place, it seems, for further clarification of the previous requirement.
- All strip or jumper springs must have a heel: This is referring to the small bulge at the end of a spring that comes in contact with a lever or a pin. The requirement for this means that each spring must be planned much more accurately in advance as the heel location is critical to the proper function of the spring. An extra-long spring with no heel would allow for a factor of inaccuracy when designing and fabricating parts, so this requirement is meant to weed out those that would play fast and loose. That, or the spring with a heel just visually looks better and more refined.
This inclusion may seem a bit odd since they today’s synthetically produced bearing jewels are mostly sourced from one or two main suppliers. However, bearing jewels play a large role in the precision of the movement and they are not necessarily of equal levels of quality. For that reason the Foundation Council saw fit to include them in the specifications. The requirements are as follows:
- Every movement must have jewels with polished holes on the train and escapement: The entire going train (wheel train dedicated to timekeeping) is required to have jewels with polished holes, though this is now a pretty standard thing on even cheap movements.
- Jewels on the bridge side must be semi-brilliant with polished sinks: This is where the use of clean and processed jewels comes into play. Not every jewel will have any polishing outside of the hole, so this addition creates a very specific shine from the jewels when viewed under the right lighting conditions.
- An endstone in the base plate for the center wheel is not required: As previously mentioned, allowances are usually there to aid in design and manufacturing choices that have become different over time due to changes in how things are done.
- Movements with shock-absorbing devices are permitted: This is an allowance for the “new” technology of shock absorbing jewels that were introduced in the last 50 years, and it remains more for legacy than anything else.
- For the rest of the movement and the additional plate, any jewel of good quality or other bearing is permitted: This means that avant-garde brands that want to use finely finished steel or ceramic ball bearings could feasibly use them elsewhere in the movement at their discretion. This may seem like a small allowance, but it has the ability to open up the Geneva Seal certification to a wider field of haute horlogerie.
The wheels in the going train and elsewhere in the movement are some of the most critical components for function, so finishing them to a high standard is somewhat dicey lest the tiny teeth become deformed or the wheel warps from the forces of polishing and filing.
There are the most requirements for wheels specifically compared to any other component in the movement, which is fitting since they make up a majority of the functional components. The requirements are split between wheels specifically in the going train (timekeeping gear train) and other wheels. Wheels in the going train must be:
- Chamfered above and below: Any edges in the design of the wheel must be chamfered on both sides. The exception to this rule is . . .
- For wheels of up to 0.15 [mm] thick, a single chamfer is allowed: This allows exceptionally thin wheels to be chamfered only on the top/visible side to ensure that structural integrity isn’t compromised.
- They must have polished sinks: The center hole area where the pinion and pivot staff is fit into the wheels must have a countersink on both sides that is polished. The exception to this rule is . . .
- For wheels less than 0.15 [mm] thick, a single sink is allowed: This allowance follows the thinking of the chamfer exception in order to ensure structural integrity is not compromised where the wheel and pinion are friction fit together.
- The shape and position of the sink are at the discretion of the applicant, provided the sink is polished: Another allowance that makes it possible for variations between wheels and variations between models. Little inclusions like these make sure that watches stamped with the Geneva Seal can look different while being finished to the same standards.
- The crossing, hub, and rim of the wheels must be chamfered: This might sound redundant after the first requirement (it sort of is), but it helps clarify what is to be chamfered and what can be left squared off. This actually will return later in relation to other requirements.
- The functional parts of the pivot-shanks and pivots, including their faces, must be burnished. The other parts must be finished so as to eliminate all machining marks: This mainly is a requirement based in function as pivot staffs are always burnished to create a hardened and polished surface suitable for low-friction movement. The second half follows what has been found throughout the requirements: eliminate machining marks for a clean and finished look.
- The pinion faces must be finished so as to remove all machining marks, without rounding off their edges or flattening out burrs. Polishing, grinding, or any other finishing operations are acceptable provided they do not contravene the foregoing requirements: This one is pretty self-explanatory, the pinion faces (top and bottom surfaces) have to be finished but it can’t change the shape of the leaves themselves which would affect performance. And concerning the leaves of the pinion . . .
- The pinion leaves must be polished without modifying the functional part of their tips: A follow-up to the previous requirement making sure that the leaves are polished but not modified, again to ensure proper performance and smooth meshing of wheels and pinion teeth.
Moving on to wheels elsewhere in the movement the requirements go down, but only because it tends to require similar finishing as to that of the gear train. Wheels that are not in the going train must be:
- Finished so as to remove all machining marks: No real surprise here, though it should be noted that this was not specifically applied to wheels in the going train. This may be an oversight or simply an assumption that those wheels would also meet this requirement, but when defining requirements for a certification loopholes like this one can lead to confusion about what is actually required.
- They must be polished if the material used allows it: This is actually an interesting choice of words. The intention is clear, but it theoretically allows for the use of other materials that might not be able to be polished because they are sapphire, silicon, or something else. It also is vague as it does not specify what needs be polished. Every surface? The faces? Even the next requirements don’t shed light on exactly how this requirement is to be judged or applied.
- Wheels with crossings must be finished in the same way as the going train wheels: As I stated earlier, this is a good way to refer to other requirements without having to spell it out all over again. This does allow for variety in design, but when combined with the other requirements for non-going train wheels, the specifications end up being slightly ambiguous about direction. This is where the approval and certification process will allow questions and changes to be made so components match what the assessors interpret the requirements to be.
- The ratchet wheel and the crown wheel must be decorated so as to remove all machining marks: This allows for a variety of finishing techniques, but if the second requirement regarding polishing is to be considered, this one seemingly contradicts that requirement. A hierarchy is not spelled out so, again, this would need to be clarified during the assessment process.
- The ratchet wheel and the crown wheel must have chamfered and polished teeth, if thick enough: This requirement is in relation to the previous requirements concerning chamfering and tooth shape. For the ratchet and crown wheel, the thicknesses tend to be large enough to offer opportunities to chamfer and polish the individual teeth. The “if” statement however allows for interpretation and for the client to make a case for why it chose not to polish the teeth.
Regulation, adjustment, and escapement
I want to stress that there are absolutely no requirements for the finishing of the balance or how it is to be constructed. The only requirements around the balance and escapement discuss aspects of the escapement lever, spring mounting, and escapement wheel surfaces.
It should be noted that this could result in some very non-traditional balance assemblies that only need follow the general guidelines for finishing throughout the rest of the movement.
This also completely allows the use of silicon hairsprings and silicon balance wheels, since there is no mention of requirements regarding the use of other metals for the components. What is specified is very different. Requirements for the escapement are defined as:
- For movements with a total diameter of more than 18 [mm] – the thickness of the escape-wheel must not exceed 0.16 [mm]. The locking faces of its teeth must be polished: This covers a majority of movements and is one of only two specific size requirements in the entire certification. The requirements for polishing of the locking faces is again related to proper functioning of the escapement.
- For movements with a total diameter of less than 18 [mm] – the thickness of the escape wheel must not exceed 0.13 [mm]. The locking faces of its teeth must be polished: This requirement covers smaller movements with a slightly adjusted size requirement, still only one of two specific size requirements.
- The angle described by the lever must be limited by fixed banking walls to the exclusion of pins or studs: In relation to the jeweled escapement lever, it is not allowed to be limited (for the purpose of overbanking protection) by any pin or stud like on less expensive movements. It must be limited by fixed walls that are either securely mounted plates or bridges or walls built into the main plate. This requires more effort and calculation during the design and engineering phase as the banking walls must be built in and, therefore, more difficult to adjust.
Next, the requirements discuss the stud and adjustment index for the balance spring, specifically how it is to be constructed to avoid any adhesives or glues as those are not permitted. The requirements state the following:
- The balance spring may be pinned up with a grooved plate having a rounded collar and cap: This is a fairly standard way to pin the balance spring once it is timed and adjusted on well-made balance assemblies. The allowance is for those that do not wish to have a free-sprung balance (where the hairspring is fixed to a stud with no regulating curb pins), which is found many higher end movements.
- A mobile stud holder is acceptable as long as it can be locked in position: This follows the previous allowance and makes a requirement that if an adjustable regulator is used it must be able to be locked into position instead of free to move. A simple lever regulator would be considered ineligible to be used as it has no way of being secured. Examples of eligible mobile stud holders would be attached to snail regulator (lever sprung against spiral cam profile), micrometer (lever is attached to and moved by a worm gear), or swan neck regulators (lever is sprung against a fine adjustment screw).
- Split or fitted indexes are allowed with a holding system except in extra-thin calibers where the holding system is not required: This again is an allowance owing to the variety of ways that balances can be regulated when not free-sprung. The allowance directs the brand toward a set of desired regulator systems that are considered elegant enough for the Geneva Seal.
- Balance wheels adjusted by variable inertia are acceptable: This last allowance is directed mainly at free-sprung balance wheels that usually use adjustable weights on the balance for fine regulation of the timing. On balances with adjustable regulator systems, any adjustable weights are usually used only for poising the balance wheel, creating an even distribution of weight so the balance rotates consistently in any position without bias toward one side.
- Balance spring fitting (pinning up to the stud and collet and counting the spring) may be undertaken outside the Canton of Geneva: Like the fabrication of components, the assembly and initial timing of the balance subassemblies can occur at the factory where the subassembly is made, with the final regulation occurring at the approved assembly location inside Geneva. This allows brands to work with specialists in creating this subassembly or simply reduces the complexity of assembly at the final location. It is the only accepted “assembly” that can take place offsite.
- The balance spring must not be glued in position; it may however be welded: This is to reiterate that no adhesives are to be used, like what can be found in very low-end watches with balance springs glued into poorly designed regulators.
This brings me to materials, which is only specified briefly in any of the documentation.
Mainly, no components made of plastic polymers are allowed, which would exclude any carbon fiber components as the resin that is usually used falls into the category of polymers. The technical commission of the Geneva Seal will periodically take a look at new materials in use for watchmaking and can, at any time, adapt new criteria according to the development of new materials in watchmaking.
This is currently where silicon is trapped. The material is explicitly non-traditional and due to its nature, it cannot be finished. It doesn’t really need to be finished to remove machining marks since the surface comes out nearly perfect and no machining marks are ever created.
The only reason I can guess this isn’t already an accepted material is that the demand to use it is still very low since there are only six companies that even have permission to use the Geneva Seal. But I bet it will soon be an approved material since it is made in a finished state, it bears no machining marks, and it improves the functionality of many parts.
The technical commission may even be discussing it right now.
Since 2011, the newly overhauled requirements cover not just the movement but also the components used for casing the movement, and the function of the watch as a whole. The components that interface with the movement and case are carefully detailed and certain components even have specific requirements.
Overall the finishing is expected to be in line with the finishing applied to the movement with fine milling and turning without burs, trimmed chamfers, and all parts must be true to the original reference kit provided for that model.
The casing components that are described are clamps and braces, dog screws, screws for the extensions and levers of the push pieces, casing-up rings, pivoting levers, and extensions of the push pieces. Some of these are called out specifically for part-specific finishing requirements, but they mirror things that have been stipulated about movement components. They are as follows:
- The clamps and braces must be finished by sanding, smoothing down, or in a tumbling drum: This is much less strict than movement components but will still result in a nicely finished component.
- Domed screw heads must be polished: Again, a mirror of requirements found elsewhere for similar parts.
- Flat screw heads must be mirror-polished with beveled rims: similarities abound as the requirements direct nearly every component to be finished in largely the same ways to maintain consistency through the watch.
- Nipping traces are not permitted in any material: Similar to the requirements for screws, no trace of cutting off is allowed as a way of ensuring the parts are as finished as possible. This applies to clamps, braces, levers, and push piece extensions.
- Casing-up rings, push piece lever,s and extensions must be finished properly in line with the sample watch submitted: This is another follow-up to make sure that the components are consistently and expertly finished, even if they are not specifically part of the movement.
Testing and certification of the “watch head” (cased-up watch)
Each watch – and every component for that matter – is inspected by the brand, which must also keep detailed records that are given to Timelab for inclusion in the Geneva Seal archives.
This is to maintain a running record of every single component that has been included in a watch marked with the Geneva Seal as well as the performance data of each cased-up watch. This is crucial for any dispute at a later date and to show proof of inspection rigor.
The tests performed on the cased-up watches simulate wear and track the actual performance against the stated figures regarding water resistance, timing accuracy, power reserve, and the individual functions of the watch.
To test water resistance (and to verify the maker’s claim), the watch is tested in either air or water to a minimum of 3 bars. If the watch is specified to have a higher resistance, that figure is tested.
The watch is tested to a negative pressure of 0.5 bars to simulate air travel. A watch does not need to be water-resistant to earn the Geneva Seal, but if it is not water-resistant that fact must be stated on the certificate.
To test the functions, the brand must outline and have approved a testing procedure that activates all the functions of the watch over one testing cycle. This allows the verification of any special functions and mechanisms that are not directly related to the telling of time.
The function test spills over into the accuracy testing as most of the functions are automatically activated over the seven-day accuracy testing period. This test occurs over seven consecutive days and sees the watch moved to simulate natural wearing on a person’s wrist. This specifically involves the watch moving through one revolution per minute for 14 hours before being stopped in a random position for 14 more hours.
All manual or automatic watches begin the test fully wound while the process is repeated for seven days. Automatic watches are never rewound (aside from the natural motion created by testing the movement), while manual winding watches are fully rewound every 24 hours.
Readings on day 0 and 7 are compared visually and against a reference time. The maximum amount of deviation allowed is less than or equal to one minute over the entire seven days.
Any automatically advancing functions are checked for accuracy at the end of the seven days, and if the watch features a perpetual calendar, the date is set to February 26 of a leap year at the beginning of the test to check the advancing of the date mechanism at its most complicated.
If the watch features a chronograph, it must be activated for the first 24 hours of the test.
Finally, for testing the power reserve, the watch is fully wound and left dial up to run down. The watch must meet or exceed its claimed power reserve.
If the watch features a chronograph, the power reserve must be specified to be considered when the chronograph is running or stopped. This is a big issue with chronograph watches as the accuracy and power reserve can drop dramatically from claimed values if the chronograph runs for a long time.
After all of this testing, inspection, and terrific amounts of hard work, if the watch passes, it can be certified as having met the requirements and be marked with the Geneva Seal.
The physical seal stamp’s location must be approved and, if possible, be marked on the same part that carries the movement’s serial number. The brand is responsible for getting the movement (and perhaps case) marked at the Timelab office, which is in control of and responsible for maintaining the necessary equipment.
Previously the mark was engraved or stamped, but in 2014 a new development was introduced called “nanostructural marking” that allows the seal to be etched into the metal instead of the previous risky stamping and engraving that could damage components.
The new procedure developed with Geneva University (UNIGE) and MaNEP, a national center of competence in physics, will actually change how the Geneva Seal deals with counterfeiting as well. The seal could theoretically be added in hidden locations for each watch, specific to each serial number, so that only the people in charge of adding the seal will have a record of where it is.
The update allows for a dramatic increase in options for marking the movements since the laser-driven nanostructural marking barely changes the surface of the material with no force. This means that the mark can be applied in virtually any location without risking damage to delicate parts, simultaneously increasing design choices as it can also be done in three different sizes.
What it all means
While that was an exhaustive trip through the requirements for the Poinçon de Genève, I want to briefly impress upon you the importance of such a seal.
With any product of high quality, the best way to ensure that quality remains high is to have an external judge of merit from an organization that only becomes stronger when it does its job as strictly as possible.
When Patek Philippe dropped the Geneva Seal and created its own in-house certification, it unknowingly devalued the meaning of its own freshly minted quality seal. Not because the brand created watches with any less quality or perfection (Patek Philippe still is considered among the best watch brands ever), but because it no longer had impartial qualification of its products.
I don’t know anyone who would say the Patek Philippe Seal is not one of the gold standards, but since it is done in-house, there can always be the question of how rigorously the brand enforces it.
Having a seal that is based outside of a benefiting brand seems to me to be a better starting point.
The Geneva Seal is the oldest remaining qualification for high-end watchmaking, and since it has updated for a more meaningful certification, the watches bearing the seal can stand ever taller knowing they passed an extremely strict test of quality in every possible way.
The list of brands currently with Geneva Seal watches in their collection is a small one, with only the sixth brand having been added in 2016. The champion behind the seal, Vacheron Constantin, leads the small group comprising Cartier, Roger Dubuis, Chopard, Ateliers deMonaco, and now Louis Vuitton (with one watch).
The group might be small, but every piece produced with the Geneva Seal is equally outstanding. After reviewing all of the requirements, it should be clear that the effort that goes into a watch bearing the seal cannot be understated or dismissed.
The updated rules and the commitment to quality and tradition (while allowing for the future to mold the present) makes the Geneva Seal not just an indication of exceptional craftsmanship, but a legacy that stretches back through three centuries of watchmaking history.
And that is something worth mentioning every now and then.
For more information, please visit http://www.timelab.ch/en/123/provenance.