Rolex Cosmograph Daytona Vs. Zenith Chronomaster Sport: Head To Head

Day one for the Zenith Chronomaster Sport was January 21, 2021. And it seemed like everyone had the same reaction: “That is one aggressive Rolex tribute.” To be fair, the Chronomaster Sport is far more than that, but the initial head-on press photos raised both eyebrows and the temperature on social media. Given zero wrist time and limited images, social media figures did what they do and made themselves the story in a fit of splenetic rants.

Forget all that. The Chronomaster Sport is a distinctive product with its own identity and soul. But let’s see how it stacks up against the mighty Rolex Cosmograph Daytona anyway.

Rolex Cosmograph Daytona (left) and Zenith Chronomaster Sport

Zenith Caliber 3600 vs. Rolex Caliber 4130

Start with the best part of every Zenith: the inside. Caliber 3600 arrived in 2019 for the El Primero’s fiftieth anniversary, and it was the long-awaited “El Primero Mark II” in all but name. It was worth the wait.

Zenith’s reborn chronograph gains ten hours of power reserve – now 60 – and hacking seconds, but the real strength of this movement is that it looks as good as it runs. Zenith stuck with a traditional lateral coupling, and it was the right move. It’s beautiful, entirely visible, and upholds the El Primero’s reputation as a rare beauty among automatic chronograph calibers.

Zenith El Primero Caliber 3600

Unlike most automatic chronographs, Caliber 3600 buries neither its clutch nor its column wheel under the winding system; hammers and levers are visible.

Rolex’s Caliber 4130, like most modern automatic chronograph movements, is all bridges and rotor. The vertical clutch isn’t particularly photogenic so it’s no loss that it hides beneath a solid case back.

It’s worth elaborating on this point: Zenith clearly thought about how this movement would strike the eye. Spiral-spoke clutch wheels are a nod to antiquity even as the nickel-anthracite coating of the bridges takes a hyper-modern turn. Zenith uses both blued and polished screws – they indicate different purposes to the watchmaker – and the violet gleam of the pivot jewels pops against the dark base. The balance explodes in a luminescent gold hue.

View through the display back of the Zenith Chronomaster Sport

This is a movement made to be seen.

Zenith Chronomaster Sport vs. Rolex Cosmograph Daytona: functionality and design

More of Zenith’s Le Locle magic emerges in the contours of the Chronomaster’s case, which eschews the tapered grace of the Cosmograph for a more robust and complex form that’s recognizable as a Zenith.

Tapered lugs of the Rolex Cosmograph Daytona (left) and square lugs of the Zenith Chronomaster Sport

The squared-off lug tips, a full-length bevel, pump pushers, and satin-finished lug hoods are purebred Chronomaster flourishes established long ago. For good measure, a tiny kerf below the crown enables easy manipulation with a fingertip.

Frankly, the Zenith also is a bit of a chunk. Its 13.8 mm thickness is a full 1.5 mm beyond the svelte Rolex Daytona, and it’s obvious in person. But that’s the price to be paid for gorgeous movement architecture and a sapphire crystal case back.

Zenith Chronomaster Sport dial

But that dial! That bezel! Geneva! True, 22 years after the last El Primero-powered Daytona, Zenith felt the impulse to revisit its famous ex. And, yes, when reduced to Atari levels of resolution, photos of the two are uncanny. Look deeper.

Zenith’s Striking Tenth foudroyant chronograph bowed a decade ago, but it still electrifies. Unlike the Daytona’s tachymeter, Zenith’s ceramic bezel is a ten-second scale designed to make the previously academic El Primero five-Hertz escapement a usable feature. Along the rim of the dial, each full second of chronograph operation is spaced over 36 degrees; this makes the recorded tenths large enough to see without eagle eyes or a loupe. And, yeah, it looks like a riot in operation.

Rolex Cosmograph Daytona dial

The Rolex? It starts, stops, and resets. Done.

Zenith offers both white and black dial options – which does nothing to discourage the Rolex comparisons. The colors take clear cues from The Crown in Geneva, but the details are all Le Locle. A 4:30 date indicator hews closely to El Primero history, and the overlapping tri-tone registers at center are straight off the Zenith A386 of 1969. Hands and indices are unique to the model and reflect a clear break with anything happening on Rue François-Dussaud.

The Chronomaster Sport’s factory strap offering puts more daylight between it and the Daytona. While aftermarket firms are happy to assist, Rolex never intended for the 116500LN generation of the Cosmograph Daytona to include a strap, and swapping to a non-OEM solution often looks awkward. The Zenith, by comparison, looks just as sharp in either configuration.

As strong as the Chronomaster Sport is, the weak link lies among the links of the bracelet. Zenith’s design trades heavily on Oyster precedent, but the result falls short. Although the three-link Chronomaster Sport bracelet is solid enough and all links are removable, the counter-torqued links include screw heads on both sides. That means owners will require a specialized jig or Philippe Dufour-level dexterity with twin flatheads to size their bracelets without leaving scars.

Bracelets and deployant clasps of the Zenith Chronomaster Sport (left) and Rolex Cosmograph Daytona

The deployant clasp is the low point of this Zenith. Not only is this the design element most directly drawn from Rolex, but the quality feels out of step with the remainder of the Chronomaster. Ironically, the Zenith clasp feels like a throwback to the Oyster clasps of the 1990s – the era of the Zenith-powered Daytona. Constructed of thin gauge-stamped steel and externally perforated for sizing adjustments, this clasp looks and feels like a relic of the last century or something suitable for a sub-$2K sports watch in 2021.

On the wrist, it’s easy to forget about the clasp, and the fidgety bracelet need be sized only once. There’s a reassuring solidity to the Chronomaster Sport, which benefits from its relatively chunky proportions and considerable weight. Many watch collectors associate this subjectively beefy feel with luxury, and the Sport’s wrist feel is more tangible than the lighter Daytona.

Compliments from watch folks come fast and furious, and the Chronomaster Sport’s controversial origins make it a rare attention magnet from low-profile Zenith. Everyone wants to see it, try it, and judge it for themselves. All due regard to the danger of small sample sizes, but most collectors who encountered the Chronomaster Sport came away impressed and convinced that the watch is more of a Daytona rival than a Daytona knockoff. This Zenith charms on merit.

Rolex Cosmograph Daytona (left) and Zenith Chronomaster Sport

A larger watch brand or a more direct market rival to Rolex probably wouldn’t have risked a watch like the Chronomaster Sport. But Zenith isn’t Omega, and the Chronomaster Sport won’t cost Rolex a single Daytona sale. Instead, we have a watch-nerd brand looking to find a fashion footing in a world where its celebrated movements often struggle for aesthetic identity.

The bottom line: price

Pricing also matters. As of October 2021, the steel Rolex Daytona retails for $13,150, and the Zenith Chronomaster Sport retails for $9,500 on a strap or $10,000 on a bracelet. Reality bites in the form of years-long dealer waiting lists for the Rolex and markups approaching $40,000 to buy the watch immediately preowned. The Zenith, by comparison, is available both new and used for approximately its retail price. And, no, the Rolex isn’t four times better than the Zenith.

From its January launch, the Chronomaster Sport’s appearance has drawn immediate comparisons to the Rolex Daytona. With the benefit of wrist time, head-to-head comparison, and reflection, a more balanced view of the Zenith puts the contentious watch in perspective. The Chronomaster Sport is Swiss engineering’s equivalent of present-day Lynyrd Skynyrd: neither a cover act nor all original blood, but still a blast.

For more information, please visit

Quick Facts Zenith Chronomaster Sport 03.3100.3600/21.M3100
Case: 41 x 13.8 mm, stainless steel, 100-meter water resistance with push-down crown
Movement: automatic El Primero Caliber 3600 with lateral clutch column wheel chronograph, 60-hour power reserve, 36,000 vph/5 Hz frequency, silicon escapement, flat hairspring, 10-second foudroyant
Functions: hours, minutes, hacking seconds; date, foudroyant chronograph
Retail price: $10,000

Quick Facts Rolex Oyster Perpetual Cosmograph Daytona 116500LN-0001
Case: 40 x 12.3 mm, stainless steel, 100-meter water resistance with screw-down crown
Movement: automatic Caliber 4130 with column wheel and vertical clutch chronograph, 72-hour power resreve, C.O.S.C. official Swiss chronometer certification, 28,800 vph/4 Hz frequency, full balance bridge and free-sprung balance, overcoil hairspring,
Functions: hours, minutes, hacking seconds; chronograph
Retail price: $13,150

*Disclosure: Tim Mosso is the media director and a watch specialist at  Watchbox.

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17 replies
  1. Gav
    Gav says:

    For me, it’s ALL low points for the Zenith, not just the inferior bracelet/clasp, power reserve, and extra thickness. After twenty years of the Cal. 4130, it still seems to be difficult for competitors to measure up to it. In that ~12mm Daytona case resides a free-sprung balance *and* overcoil, usually a solution only found in higher-grade watches. Zenith went, as always, with the cheaper option.

    They made a cynical move with this design, and no extra effort to bring it up to a higher technical standard. To have stood a chance against what is – and has been for the past twenty years – probably the finest automatic sports chronograph in the world, LVMH would have had to go against form and not slum it with their hoi polloi calibres.

    A lot of people will get this because it looks like the legend. Don’t.

        • Ray
          Ray says:

          If you own a Rolex, of any kind, you are typical of the owners. Also if YOU own a Rolex the odds (as it is fact now that over 50% of Rolex being sold are FAKE ) that you are very proud of your very fake, cheap Rolex ! Any Rolex not purchased brand new from a long standing AD is very,very suspect. You seem like the the type of gentleman to own one or two of the very well made Chinese fakes. Happy Holidays !

      • Mike Walsh
        Mike Walsh says:

        Well said. Very restrained.
        Very interesting review thank you. If I didn’t already have a fantastic chronograph I would be taking a serious look at the Zenith – would also like to take a serious look at the Rolex but as it’s not available why bother.
        Best regards Mike

  2. Patroklos
    Patroklos says:

    Zenith > Brolex, easily. by a long shot. superior in every way except thickness (which, as noted, doesn’t matter all that much as you get to see the great movement, which is half the point of getting a chronograph watch in the 21st century) and bracelet (not that important to me, as i wouldn’t wear it on a bracelet anyway). but, the best feature of the watch BY FAR, was seeing all the butthurt Brolex fanboys 😀 😀 (see them squirm in this comment section as well 🙂 )

  3. Tam O' Banter
    Tam O' Banter says:

    Given the fact that the vast majority of Daytona buyers will neither know nor care about the superiority of the Rolex calibre, I’d say that the “cynicism quotient” is about equal.
    I VERY rarely say this, but I sort of admire Zenith for being so… straightforward.
    You want a Daytona but can’t find one? Refuse to join a waiting list, pay several times the RRP or buy several other watches you don’t want to please a dealer?
    Zenith has you covered. 😊
    As for the “tinny stamped metal clasp with adjustment holes”, I love them!!
    Light, comfortable and efficient.
    I have rejected a great many pieces with supposedly “superior” bracelets because they have no micro-adjustment.
    I really wish the bracelet arms race would subside. Its only as strong as the spring bars anyway!!

    • Gav
      Gav says:

      Well, unless the vast majority of Daytona buyers who don’t care about the movement have been living under a rock, there’ll be another little reason why they wouldn’t accept the next best thing.
      Although the Zenith isn’t even that. Omega’s Speedmaster with either the 3861 or 321 would deservedly step in with decent tech, a recognisable heritage and no 4.30 date to bork the dial up.

      I hear you on micro-adjustment, though!

  4. Chiboy
    Chiboy says:

    I love chronographs and Rolexes and got a Daytona in 2016 (not stainless), but if I were looking for a chrono in 2021 I’d never spend $35k-$43k for a SS Daytona. I’d look hard at the El Primero or a Speedster of some variety. The El Primero looks and sounds very nice, but 1) I really don’t like a date on an already crowded chrono dial (Datograph is an exception), 2) I’d like the dial better if the sub-dials weren’t in different colors, and 3) the bezel and bracelet are so similar to a Daytona as to make me feel like I’m wearing a Rolex replica.

    I guess having said that, I’d look hard at Speedmasters and figure out which one was right for me.

  5. Tam O' Banter
    Tam O' Banter says:

    To me, a Speedmaster is not competition for a Daytona, because it is such an obviously superior design. I have never liked the Daytona. It simultaneously tries too hard and misses the point.
    The Speedmaster is perfect.
    The Daytona was designed to be sold to the boardroom “alpha male” who does not understand that his flashy watch doesn’t work with his “French cuffs”.

  6. MiamiGT4
    MiamiGT4 says:

    I own an 116500LN panda, white dial Chronomaster Sport, Submariner Hulk, and a blue dial Speedy Pro. Bought the panda when they were sub-30K. If I had to have only one watch – Daytona, all day, every day. I bought the Zenith because, to me, it’s the most attractive El Primero made, is the right size and I love it’s history and in-house design. I prefer white, silver or unusual dials that stand out (hence white, green and blue) and the white dial with black ceramic bezel just works so well. Is it a rip-off design of the Daytona? Without a question. Do I wear it when going out at night, hopping into Ubers, taking the train? Absolutely because I don’t want to risk the Daytona. Not a bro, just a mild mannered mechanical engineer that owns a manufacturing firm.


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