| Reference Ocarat | #19811 |
| Reference | 856.011 |
| Brand | Sinn |
| Product Type | Watch |
| Gender | Men |
| Color | Black |
| Material | Steel |
| Material Quality | Stainless Steel |
| Finish | TEGIMENT Treatment |
| Warranty | 3 years |
| Thickness (in mm) | 11,00 |
| Diameter (in mm) | 40,00 |
| Manufacturing | Germany |
| Labels and Certificates | Authorized Retailer |
| Case Shape | Round |
| Case Weight (in g) | 70,00 |
| Watch Case Back | Screwed caseback |
| Glass Quality | Sapphire Crystal |
| Glass Treatment | Double Anti-Reflective Coating |
| Watch Case Types | Date |
| Buttons | 1 Crown |
| Screw Crown | Yes |
| Water Resistance (in ATM) | 20 |
| 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 | Dates Hours Minutes Seconds |
| Timekeeping and Measurement | Hacking seconds device |
| Power Reserve (Maximum Duration) | 42 hours |
| Display Type | Analog (hands) |
| Display Specifications | Arabic Numerals Luminescent hands and indexes SuperLuminova |
| Techniques and Mechanics | Ar Dehumidification Technology TEGIMENT Treatment |
| Bracelet Material | Steel |
| Strap Color | Gray |
| Watch Clasp | Single Deployment Clasp |
| Lug Width (in mm) | 20,00 |
| Activities | Aviation Swimming / Diving Yachting / Sailing |
Series 856 - Aviator Watch with magnetic field protection.
A benchmark in functionality, this watch features an anti-reflective black dial engineered for perfect legibility - oversized hands, indices, and numerals deliver intuitive, unambiguous readability even in extreme conditions.
The Watch
Topped with a double anti-reflective sapphire crystal, the round case is crafted from stainless steel with a satin finish. It measures 40mm in diameter, 11mm thick, and weighs 70 grams without the bracelet. The matte black dial features white Arabic numerals, 3 luminescent white hands and indices, and a date window at 4 o'clock. The screw-back case is nickel-free, and the crown at 3 o'clock is also screwed down.
This watch features a steel bracelet with a deployment clasp. Water-resistant to 20 atmospheres (200m), it can be used for swimming and scuba diving.
Specific Technical Features
The entire case and bracelet of the 856 have undergone TEGIMENT anti-impact treatment. This surface-hardening technology provides highly effective protection against scratches on stainless steel.
This watch also features Sinn's patented Ar dehumidification technology. This technology slows the aging process of the watch's internal components, extending the movement's lifespan. It also prevents condensation from forming on the crystal during sudden temperature changes.
This watch also offers protection against magnetic fields up to 80,000 A/m.
The Movement
This watch is powered by a Swiss Sellita SW300-1 automatic movement. This 25-jewel caliber displays hours, minutes, seconds, and date via a window. It is equipped with a hacking seconds device for precise time-setting. The movement runs at 28,800 vph with a 42-hour power reserve.




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856 Steel Watch
(Ref. 19811)