Zenith’s Chronomaster line has long been tied to the pulse of the El Primero, but the new Chronomaster Solo Sport takes that identity in a more pared-back direction.
Instead of leaning on the chronograph layout that made the movement famous, this 40 mm model focuses on a central seconds hand, a high-frequency calibre and a robust everyday case construction.
It’s still unmistakably a Zenith, just with less visual noise and a more direct sporting brief.
At a glance
- Zenith has introduced the Chronomaster Solo Sport as a three-hand addition to the Chronomaster collection.
- The watch uses the automatic El Primero 3620 calibre, running at 5 Hz with a 60-hour power reserve.
- Prices start at €9,500 / US$9,800 for the black no-date model and rise to €10,500 / US$10,900 for date versions.
A three-hand El Primero with sport-watch intent
The Chronomaster Solo Sport is an interesting move because it keeps the defining tempo of El Primero while removing the chronograph display entirely.
Zenith introduced El Primero in 1969 as the world’s first automatic integrated high-frequency chronograph calibre, and its 5 Hz frequency has remained central to the maison’s technical character ever since.
Here, that frequency is carried by the automatic El Primero 3620 calibre, a Manufacture movement derived from the El Primero 3600 chronograph engine.
It runs at 36,000 vibrations per hour and includes a silicon escapement, stop-second mechanism and bi-directional winding system.
The star-shaped rotor is visible through the caseback, while the 60-hour power reserve gives the watch enough autonomy to sit comfortably in a modern rotation.
The case measures 40 mm across and 13.3 mm thick, with a 46 mm lug-to-lug span that should make it approachable for a broad range of wrists.
A unidirectional rotating ceramic bezel, screw-down crown and 200-metre water resistance move the watch beyond dressy three-hand territory and into daily sport-watch use.
Ceramic dials and a sharper Zenith signature
Zenith has given the Solo Sport four variations at launch, with black, white and brown dial models fitted with a date display, plus a black no-date version for those who prefer a cleaner layout.
The dial material is ceramic across the collection, which is a notable choice for a watch that otherwise presents as a direct stainless steel sports piece.
Each dial carries a repeated 45-degree Z motif created for this model.
On the white version, the pattern is engraved into a sunray-finished ceramic surface, while the black and brown versions use polished ceramic with the motif rendered across the dial.
The Z detail continues onto the counterweight of the central seconds hand, a small but deliberate way of tying the movement of the hand to the broader identity of the watch.
A peripheral minute track uses Zenith’s shark-tooth styling, giving the outer edge of the dial a segmented, more technical feel.
That detail also brings a faint vintage echo without turning the Solo Sport into a heritage exercise.
The ZENCLASP bracelet system
All versions are fitted to a three-link stainless steel bracelet with Zenith’s ZENCLASP folding clasp.
The bracelet is a key part of the watch’s pitch, particularly because Zenith has given the clasp a tool-free micro-adjustment system.
The setup allows adjustments in 2.5 mm increments, with a total adjustment range of 10 mm.
That makes the bracelet easier to fine-tune through the day, especially in warmer conditions or during travel.
The clasp uses a lift-up safety cover with the Zenith star, while a secondary cover provides access to the adjustment mechanism.
Zenith says the ZENCLASP is made from 41 components and took three years to develop, with about 1,800 hours of research, engineering and optimisation behind it.
Durability testing covered more than 600,000 opening and closing cycles, which Zenith equates to more than ten years of simulated use.
Details & Specifications
| Brand | Zenith |
|---|---|
| Model | Chronomaster Solo Sport |
| Case size | 40 mm diameter, 13.3 mm thickness, 46 mm lug-to-lug |
| Case material | Stainless steel |
| Bezel | Unidirectional rotating ceramic bezel |
| Dial | Ceramic dial with repeated 45-degree Z motif |
| Movement | Automatic El Primero 3620 calibre |
| Frequency | 5 Hz / 36,000 vibrations per hour |
| Features | Hours, minutes, central seconds, stop-second mechanism, date on selected versions |
| Escapement | Silicon escapement |
| Winding | Bi-directional winding with star-shaped rotor |
| Power reserve | 60 hours |
| Water resistance | 20 ATM / 200 metres / 660 feet |
| Bracelet | Three-link stainless steel bracelet with ZENCLASP folding clasp |
| References | Black date 03.5000.3620/22.M5000, white date 03.5000.3620/69.M5000, brown date 03.5001.3620/72.M5000, black no-date 03.5000.3620/21.M5000 |
| Price | €9,500 / US$9,800 for black no-date, €10,500 / US$10,900 for date versions |
The Chronomaster Solo Sport feels like a logical expansion of Zenith’s modern catalogue, especially for collectors who admire the El Primero’s high-frequency personality but don’t necessarily need a chronograph on the dial.
With its ceramic detailing, serious water resistance and considered bracelet adjustment, it gives the Chronomaster line a cleaner daily-wear option without diluting what makes the name matter.
