What We Know
Now in its sixth decade as one of the most famous movements in the industry, the El Primero remains at the heart of Zenith’s offerings. To kick off Geneva Watch Days, Zenith is doing something slightly different, launching a Chronomaster Sport without a chronograph—the Chronomaster Solo Sport. The watch arrives in four variations: three with ceramic dials and bezels in black, white, and brown, plus a no-date option also in black.
All four come in a 40mm stainless steel case with a ceramic unidirectional rotating bezel. The dial features hours, minutes, and seconds, with date added on three of the four references. Despite losing the chronograph, there’s still a lot going on up top. The words “36,000 VpH” and “high frequency” alone take up two lines of the dial, and the subtle “shark tooth” minute track gives a nod to vintage Zenith references.
The dial itself is ceramic, built around a repeated 45° Z motif meant to evoke the rhythm and vibration of the movement underneath—rendered as a sunray finish on the white version and a polished surface on the black and brown versions. That same pattern carries over to the counterweight on the seconds hand.
The El Primero 3620 powers the watch, derived from the El Primero 3600 chronograph movement and operating at 5 Hz, or 36,000 VpH, while retaining the star-shaped rotor. It’s equipped with a silicon escapement and a stop-second mechanism for precise time-setting, and it offers a 60-hour power reserve.
Also featured is the new Zenclasp folding clasp, first introduced at Watches and Wonders 2026 and now standard here. Its tool-free micro-adjustment lets you resize the bracelet in 2.5mm increments up to 10mm total, and the locking mechanism is reinforced by ten ceramic balls among its 41 components.
The Zenith Chronomaster Solo Sport is available now at Zenith boutiques, online, and through authorized retailers worldwide. The black, white, and brown date versions are priced at $10,900, while the no-date black variant comes in at $9,800.
What We Think
An El Primero-powered Chronomaster without a chronograph raises more questions than it answers. The movement exists because of the chronograph, not despite it. Cutting that function from a watch built on this specific pedigree feels almost contradictory. And it’s not without precedent—a slight variation of the El Primero 3620 caliber has powered the chronograph-less Defy Skyline since 2022. But, at least to me, it feels more at home there than in the Chronomaster.
That said, I can only assume that decision was made, at least in part, because of price. My assumption going in was that losing the chronograph would come with a real discount, and that turns out to be true. The Sport, chronograph intact, starts at $12,300 on a steel bracelet. The Solo Sport’s date versions come in at $10,900, a real $1,400 less, and the no-date variant, which I prefer, widens that gap to $2,500. The 40mm size, slightly decreased from the 41mm of the Chronomaster Sport, feels great on the wrist, even for someone who tends to wear watches on the smaller side. Finally, I’d be remiss not to mention the Zenclasp bracelet, which I first saw at Watches and Wonders. It’s a really nifty design that I think a lot of people will like.
Taken on its own, the Solo Sport is a genuinely well-proportioned, well-built watch—the case, the bracelet, the Zenclasp all get real thought, and it is a solid alternative for those who’d rather not pay a premium for the chronograph.
The Basics
Brand: Zenith
Model: Chronograph Solo Sport
Reference Number: 03.5000.3620/21.M5000 (no-date); date versions: 03.5000.3620/69.M5000, 03.5000.3620/22.M5000, 03.5001.3620/72.M5000
Diameter: 40mm
Case Material: Stainless steel
Dial Color: Black (no-date); black, white, and brown (date)
Indexes: Faceted applied indexes
Lume: Super-LumiNova SLN C1
Water Resistance: 200m (20 ATM)
Strap/Bracelet: Three-link stainless steel bracelet with Zenclasp folding clasp and integrated micro-adjustment
The Movement
Caliber: El Primero 3620
Functions: Hours, minutes, central seconds
Diameter: 30mm (13¼ lignes)
Thickness: 6.6mm
Power Reserve: 60 hours
Winding: Automatic, bi-directional rotor with star-shaped weight
Frequency: 36,000 VpH (5Hz)
Jewels: 26
Pricing & Availability
Price: $9,800 (no date); $10,900 (date
Availability: Now
Limited Edition: No
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