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141

Controversy Or Not? Synthetic Vs. Natural Diamonds In Watchmaking (Video)

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In April 2017 a symposium with the title “Synthetic Diamonds: Are Watchmaking and Jewelry in Danger?” took place in Geneva whose aim was to explain the indubitable reality of the arrival of synthetic diamonds in the world of watchmaking and demonstrate how it is possible to differentiate natural from lab-grown stones. Discover here what sort of challenges and impact on the industry this topic could have.

143

Making The Diamond Pallets For Derek Pratt’s Reconstruction Of John Harrison‘s H4, The World’s First Precision Marine Chronometer (Part 2 of 3)

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Here we present the second part in a three-part series about the making of Derek Pratt’s reconstruction of John Harrison’s H4. This part was written by Carl Murray of Frodsham. This article was first published in ‘The Horological Journal’ (HJ) in March 2015, who we thank for permission to republish on Quill & Pad.

145

Ebb And Flow: Christiaan Van Der Klaauw Real Moon Tides

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In the Real Moon Tides, Christiaan van der Klaauw’s watchmakers incorporated an indication of the phenomenon that is the most real-world expression of the moon’s effects towards life on earth: tides. The most incredible aspect of tides is how variable they actually are when you really get into the nitty-gritty details. And this watch reflects them in a beautiful way.

146

Focus On Technology: Multi-Axis Machining – A Primer

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It occurred to me one day, while explaining to a visitor to my “office” how the machine “knows” where the part is, that many people have very little exposure to the machinery that literally builds so many wristwatch components today. So for your reading pleasure, I break down the basics of milling machines and turning centers, the multi-axis machines that have become a cornerstone of modern fabrication in the watch industry.

147

350 Processors And 90,000 Watts of Power Just To Mill A Curved Line? CNC Primer

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On a recent visit to the Valbray manufacture, I surreptitiously looked at the electrics in back of a CNC machine (as one does). Seeing my interest, Côme de Valbray, who co-founded the brand with his wife Olga, casually mentioned that the racks of electronics contained the processing power of 350 powerful computers and that the machine drew up to 90,000 watts of power in operation: that’s equivalent to the power used by around ten homes.

150

How a Mechanical Watch Works with Simple to Understand Animations

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In theory, a mechanical watch is very simple: it’s ‘simply’ a spring (the mainspring) unwinding at a constant rate with hands attached to gears that rotate as the spring unwinds. Easy! Ian Skellern highly recommends anyone at all interested in mechanical watches to watch this video as it clearly highlights how a mechanical watch works.