With the diving watch U1, Sinn engineers succeeded in developing a diving watch in which the quality of material and design gives it superior resistance to external influences under extreme conditions of use.
In their search for a steel with the desired resistance, the Sinn engineers found what they were looking for at the German submarine manufacturer ThyssenKrupp Marine Systems: the steel manufacturers supply small quantities of the original steel of the current German submarine production exclusively to Sinn for making diving watches — the very steel of which the external hulls of the German Navy's new submarine class 212, which currently represents the most advanced non-nuclear submarines in the world, are made. This original submarine steel is not only extraordinarily seawater-resistant but is also of the highest non-magnetic quality without any residual magnetism.
To ensure reliably that the rotating bezel of the diving watch does not detach under harsh impacts, it is attached as a captive bezel to the central part of the case.
The water-resistance and pressure resistance of 100 bar (= 1000 m water depth) was certified for the diving watch U1 by DNV GL. The safety test pressure used for this purpose was 125 bar.
- Completely made of high-strength seawater-resistant German Submarine Steel
- Bezel with Black Hard Coating on a TEGIMENT Technology basis
- Tested based on European diving equipment standards and certified by DNV GL
- Captive diver's bezel with minute ratcheting
- Crown at 4 o'clock to prevent pressure on the back of the hand
- Sapphire crystal glass
- Pressure-resistant to 1,000 m diving depth (100 bar), certified by DNV GL
- Low pressure resistant
Mechanical Movement
- SW 200-1
- Self-winding mechanism
- 26 bearing jewels
- 28,800 semi-oscillations per hour
- Seconds stop function
- Anti-magnetic as per DIN 8309
Case
- Case made of German Submarine Steel, bead-blasted
- Sapphire crystal glass in front, anti-reflective on both sides
- Case back screw-fastened
- Crown screwable
- Meet the technical requirements for waterproofness, as set out in standard DIN 8310
- Pressure-resistant up to 1,000 m diving depth (= 100 bar), certified by
- DNV GL
- According to the technical demands for the diving norm DIN 8306
- Tested based on European diving equipment standards EN 250 / EN14143 and certified by DNV GL
- Low pressure resistant
Functions
- Hours, minutes, seconds
- Date display
- Diver’s bezel with minute ratcheting and luminous key mark
SINN Technologies
- Bezel with Black Hard Coating on a TEGIMENT Technology basis
- Captive bezel
Dimensions and Weight
- Case diameter: 44 mm
- Band lug width: 22 mm
- Case thickness: 14.7 mm
- Weight without strap: 113 gramme
Dial and Hands
- Matte black dial
- Indices coated with luminescent colour
- Hour, minute and second hand coated with luminescent colour
Warranty
- 2 years
| case material: | Steel |
| Movement: | Automatic |
| Gender: | Men's watch / Unisex |
| Art: | Watches |
