Officially unveiled at Geneva Watch Days 2026, the new ZENITH Chronomaster Solo Sport marks a major strategic shift for the Le Locle manufacture. For the first time in the history of the iconic Chronomaster lineup, the brand dispenses with chronograph counters to introduce a modern, everyday three-hand sports watch built around the high-frequency 5 Hz beat of the manufacture El Primero 3620 calibre.
Case Architecture and High-Frequency Design Language
The Chronomaster Solo Sport features a 40 mm stainless steel case with dynamic crown guards that ensure a water resistance rating of 20 ATM (200 meters). The case is crowned by a unidirectional rotating ceramic bezel (in black or brown depending on the execution), adding a functional, technical edge to a silhouette designed to transition effortlessly between urban routines and active outdoor adventures.
Its structured ceramic dial debuts a brand-new visual identity: a repeating 45° “Z” pattern engraved into the surface, translating the mechanical rhythm and vibration of the movement into a graphic signature. The design is framed by a peripheral “shark-tooth” minute track inspired by historical ZENITH references, faceted indices coated with Super-LumiNova SLN C1, and a central seconds hand featuring a counterweight that mirrors the model’s geometric motif.
⚙️ ZENCLASP™ Micro-Adjustment System
Ergonomic Bracelet Innovation
Fitted with a three-link stainless steel bracelet, the watch debuts ZENITH’s proprietary ZENCLASP™ folding clasp. Engineered over three years (1,800 development hours) across 41 individual components, it allows quick, tool-free micro-adjustments in 2.5 mm increments up to a total extension of 10 mm for maximum on-wrist comfort throughout the day.
El Primero Calibre 3620: 5 Hz High Frequency
At the heart of the timepiece beats the manufacture El Primero 3620 calibre, an automatic movement directly derived from the El Primero 3600 chronograph. Operating at a frequency of 36,000 vibrations per hour (5 Hz), it features a silicon escape wheel, stop-seconds mechanism for precise time setting, and a bidirectional winding system with ZENITH’s openworked star rotor. It delivers a robust 60-hour power reserve.
Pros and Cons
Pros:
- Manufacture high-frequency 5 Hz movement (36,000 vph) featuring a silicon escapement and 60-hour power reserve.
- Excellent 20 ATM (200 meters) water resistance paired with a durable ceramic bezel.
- New ZENCLAS folding clasp offering up to 10 mm of tool-free, on-the-fly micro-adjustment.
- Availability of a clean “No Date” black dial variant tailored for dial symmetry purists.
Cons:
- Omission of the signature chronograph function may polarize traditionalists devoted to the Chronomaster lineage.
Technical Specifications: ZENITH Chronomaster Solo Sport
| Specification | Technical Detail |
|---|---|
| References | 03.5000.3620/69.M5000 (White) | 03.5000.3620/22.M5000 (Black) | 03.5001.3620/72.M5000 (Brown) | 03.5000.3620/21.M5000 (Black No Date) |
| Case / Dimensions | 316L Stainless steel: 40.0 mm diameter; screw-down crown with protective guards |
| Crystal / Caseback | Sapphire crystal with anti-reflective coating; transparent sapphire caseback |
| Bezel | Unidirectional rotating ceramic bezel (black or brown depending on reference) |
| Dial | Ceramic (sunray white, polished black, or polished brown) with engraved 45° “Z” motif; peripheral “shark-tooth” minute track |
| Movement | Manufacture ZENITH El Primero 3620 automatic (silicon escapement, stop-seconds mechanism) |
| Frequency / Power Reserve | 36,000 vph (5 Hz) / 60 hours power reserve |
| Water Resistance | 20 ATM (200 meters) |
| Bracelet | 3-link stainless steel bracelet with ZENCLASP folding clasp (tool-free micro-adjustment up to 10 mm) |
| Pricing | CHF 9,900 (Date models) / CHF 8,900 (Black No Date model) |
