| Reference Ocarat | #15800 |
| Reference | 1020.020 |
| Brand | Sinn |
| Product Type | Watch |
| Gender | Men |
| Color | Black |
| Material | Steel |
| Material Quality | Stainless Steel |
| Finish | Black PVD |
| Warranty | 3 years |
| Thickness (in mm) | 15,50 |
| Diameter (in mm) | 44,00 |
| Manufacturing | Germany |
| Labels and Certificates | Authorized Retailer |
| Case Shape | Round |
| Case Weight (in g) | 114,00 |
| Bezel | Unidirectional Visual Countdown |
| Watch Case Back | Screwed caseback |
| Crystal Shape | Domed |
| Glass Quality | Sapphire Crystal |
| Glass Treatment | Double Anti-Reflective Coating |
| Watch Case Types | Date |
| Buttons | 1 Crown |
| Water Resistance (in ATM) | 200 |
| Frequency | 28,800 A/h (4 Hz) |
| Movements | Automatic (rotor) |
| Movement Type | Swiss Movement |
| Movement Brand | Sellita |
| Calibers (Movements) | Sellita SW 330-2 |
| Calendar and Time | Dates GMT (time zone) Hours Minutes Seconds |
| Timekeeping and Measurement | Hacking seconds device |
| Power Reserve (Maximum Duration) | 50 hours |
| Display Type | Analog (hands) |
| Display Specifications | Arabic Numerals Luminescent hands and indexes SuperLuminova |
| Techniques and Mechanics | Rotating bezel |
| Bracelet Material | Silicone |
| Strap Color | Black |
| Watch Clasp | Single Deployment Clasp |
| Lug Width (in mm) | 22,00 |
| Activities | Swimming / Diving Technical Adventure Yachting / Sailing |
The series takes every proven advantage of Sinn diving watches to an entirely new level. Reliable at depths of up to 2,000 meters and temperatures ranging from -45 to +80°C.
The Watch In search of a steel capable of withstanding extreme conditions, SINN engineers - working alongside German submarine manufacturers - developed the production of small quantities of the same steel used in German submarines. This steel is not only extraordinarily pressure-resistant, but also boasts the highest anti-magnetic rating with zero residual magnetism.
Topped with a domed sapphire crystal featuring double anti-reflective coating, the round case is crafted from submarine steel with a black PVD coating. It measures 44 mm in diameter, 15.5 mm thick, and weighs 114 grams.
The case is fitted with a black unidirectional rotating bezel offering a visual countdown function. To prevent accidental rotation, the bezel is secured to the case so it cannot be lost. Both the case and the steel bezel have undergone TEGIMENT anti-impact treatment - a surface-hardening technology that effectively protects stainless steel against scratches.
The black dial features luminescent white hands and hour markers, an orange seconds hand, a date window at 3:00, and a black hand with an orange tip to display a second time zone in 24h format. The screw-down crown is positioned at 4:00.
This watch comes fitted with a silicone strap - ideal for diving. It's built for the deep, offering water resistance up to 200 atmospheres (2,000 meters). This rating has been tested and certified by Germanischer Lloyd, the international naval classification and technical insurance organization.
This watch also features Sinn's patented Ar dehumidification technology. It slows the aging process of the watch's internal components, extending the movement's service life. It also prevents condensation from forming on the crystal during sudden temperature changes.
The Movement This watch houses a Sellita SW 330-2 automatic self-winding movement. This 25-jewel caliber displays hours, minutes, seconds, date, and a second time zone. It features the Stop-Second mechanism for precise time-setting to the second. The movement runs at 28,800 vph with a 50-hour power reserve.




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Mission Timer Diving Watch U2 S EZM 5
(Ref. 15800)