News · Zenith

Zenith takes the chronograph out of Chronomaster

The 40mm Solo Sport retains a 5Hz El Primero movement, 200-metre rating and adjustable steel bracelet across four dials.

Hen & Mills Editorial · 3 min read · 3 September 2026

• The 40mm steel Solo Sport is offered in four date and no-date dial configurations.
• El Primero calibre 3620 runs at 5Hz and provides 60 hours of power reserve.
• Date models cost CHF9,900, while the no-date model costs CHF8,900, with worldwide availability from 2 September.

Zenith has removed the chronograph from the Chronomaster without removing its high-frequency character. The new Chronomaster Solo Sport is a 40mm steel sports watch powered by the 5Hz El Primero 3620 automatic calibre. Four versions open the range, including black, white and brown date models and a cleaner black no-date reference.

The name takes a moment to settle. Chronomaster has become closely associated with tenth-of-a-second chronographs, while Solo describes a watch with central hours, minutes and seconds. Zenith's answer is to retain the fast El Primero heartbeat and the technical exterior, then make the central seconds display the main event.

High frequency without the pushers

The El Primero 3620 runs at 36,000 vibrations per hour, or 5Hz. That gives the central seconds hand ten steps each second. The calibre is derived from Zenith's El Primero 3600 architecture, but this is not a chronograph with parts taken away as an afterthought. It is configured for timekeeping, with stop-seconds for setting and a silicon escapement.

Automatic winding works in both directions and the movement delivers 60 hours of power reserve. The balance between frequency and reserve is important. A faster escapement consumes more energy, so a useful two-and-a-half-day reserve prevents the specification from becoming a daily inconvenience. The movement is visible through the back, where Zenith's open star-shaped rotor makes the family connection obvious.

On the wrist side, the dial uses a ceramic-patterned surface rather than the overlapping subdials of a Chronomaster Sport. Date versions are offered in black, white and brown, with the aperture integrated into the display. The fourth model pairs a black dial with no date, giving buyers a genuinely simpler layout rather than forcing one configuration across the launch.

A compact case with a serious rating

The stainless-steel case measures 40mm and is fitted with a screw-down crown and crown guards. Water resistance is 20 ATM, or 200 metres, which makes the Solo Sport more than a dressy three-hander wearing a ceramic bezel. The bezel is unidirectional, reinforcing the practical sports-watch brief even though this is not presented as a dedicated dive instrument.

Zenith fits a three-link steel bracelet and its ZENCLASP system. The clasp allows adjustments in 2.5mm steps across a total range of 10mm, without requiring a tool. That is a small but meaningful specification on a steel sports watch, where wrist size can change over the course of a hot day and a fixed half-link is a blunt solution.

The absence of chronograph pushers also changes the proportions. A 40mm diameter, guarded crown and integrated-looking bracelet give the watch a direct, compact profile. It still reads as part of the contemporary Chronomaster family, but the dial no longer has to organise three registers, a date and a fast central chronograph hand.

Choosing between the four references is therefore a question of how much information the dial should carry. White gives the strongest contrast, brown adds warmth to the otherwise technical case, and the two black models keep the appearance closest to the ceramic bezel. The no-date black version is the purist option, but the date models do not sacrifice the underlying 200-metre specification or movement.

The bezel remains an unusual choice on a time-only watch. It gives the owner a simple elapsed-time reference without the complexity of a chronograph, and its unidirectional action prevents an accidental knock from making a timed interval appear shorter. That is useful for ordinary tasks even if the watch never goes near a dive.

It also preserves a tactile function that distinguishes the Solo Sport from a conventional three-hand watch.

Price and availability

Zenith officially unveiled the Chronomaster Solo Sport at Geneva Watch Days 2026. Each of the three date references is priced at CHF9,900, while the black no-date model is CHF8,900. The range became available worldwide from 2 September 2026 through Zenith boutiques, the brand's online store and authorised retailers.

The lower price of the no-date reference accompanies its simpler display, while the three dial colours with a date share one price. Across all four, the proposition remains clear. The Solo Sport offers the smooth visual cadence and engineering interest of a 5Hz El Primero in a format that can be worn without ever timing a lap. The 200-metre rating, compact case and adjustable clasp back up the Sport suffix.

For Zenith, the Solo is also a useful correction to the idea that El Primero must always mean chronograph. The movement family began with that complication, but high frequency has value in ordinary timekeeping too. This watch isolates that quality and puts it at the centre, one fast-moving seconds hand at a time.