| Reference Ocarat | #129673 |
| Reference | GF4216121218 |
| Brand | ZRC |
| Product Type | Watch |
| Gender | Men |
| Color | Black Blue |
| Material | Steel |
| Material Quality | 316L stainless steel |
| Finish | Matte (Brushed / Satin) Polished / Shiny |
| Warranty | 3 years |
| Thickness (in mm) | 13,85 |
| Diameter (in mm) | 41,50 |
| Manufacturing | Switzerland |
| Warranty Type | International |
| Labels and Certificates | Authorized Retailer |
| Case Shape | Barrel chain |
| Bezel | Unidirectional |
| Dial Finish | Smoky |
| Watch Case Back | Screwed caseback |
| Crystal Shape | Domed |
| Glass Quality | Sapphire Crystal |
| Glass Treatment | Anti-Reflective Coating |
| Buttons | 1 Crown |
| Screw Crown | Yes |
| Water Resistance (in ATM) | 100 |
| Frequency | 28,800 A/h (4 Hz) |
| Movements | Automatic (rotor) |
| Movement Type | Swiss Movement |
| Movement Brand | Sellita |
| Calibers (Movements) | Sellita SW 300-1 |
| Calendar and Time | Hours Minutes Seconds |
| Power Reserve (Maximum Duration) | 56 hours |
| Display Type | Analog (hands) |
| Display Specifications | Arabic Numerals Indices and railroad track Luminescent hands and indexes |
| Bracelet Material | Rubber |
| Strap Color | Black |
| Bracelet Material Finish | Brushed steel Polished steel |
| Water Resistant | Yes |
| Watch Clasp | Tang Buckle |
| Lug Width (in mm) | Special - Custom Made |
| Activities | Swimming / Diving |
The MN64 Heterium watch by ZRC is a showcase of Swiss watchmaking at its best, combining rugged design with technical sophistication. Crafted from 316L stainless steel, its distinctive barrel-shaped case delivers a bold, contemporary silhouette. Brushed and polished finishing reveal exceptional attention to detail, making this watch as beautiful as it is durable. At 41.50 mm, it sits confidently on the wrist — a commanding presence that never sacrifices comfort. The integrated unidirectional bezel speaks to the precision engineering behind every detail.
The dial of this ZRC watch is a standout feature — its smoked finish plays subtly with a deep blue hue, creating stunning visual depth. Bold Arabic numerals ensure instant legibility, while luminescent hands keep things readable even in total darkness. A classic minute track frames the dial for a structured, refined look. Protected by a domed sapphire crystal with anti-reflective coating, the dial is virtually scratch-proof — clear and legible in any condition.
At the heart of this watch beats a Swiss automatic movement, the impressive Sellita SW 300-1 caliber. Renowned for its accuracy, it delivers an oscillation frequency of 28,800 A/h (4 Hz) for consistently high-level performance. A 56-hour power reserve keeps the watch running accurately even after several days off the wrist. Swiss-made reliability at its finest, for those who never compromise on quality.
The strap of this ZRC dive watch delivers both comfort and performance. Crafted from black rubber, it's purpose-built for water sports — tough, resilient, and remarkably comfortable for all-day wear. A polished steel pin buckle adds a refined touch while keeping everything securely in place. Proof that rubber doesn't mean compromising on style — the finish beautifully complements both the dial and the case.
Built to withstand the harshest conditions, this ZRC watch is rated to 100 atmospheres. Whether you're a professional diver or a watersports enthusiast, it won't let you down. A screw-down crown and secured case back work together to deliver flawless performance at extreme underwater pressures.




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MN64 Heterium Watch GF4216121218
(Ref. 129673)