Sinn - U1 B

Striking lines, minimalistic displays and clear readability define the diving watches in the U1 series. A special feature of the U1 B is the matt-blue dial.

The luminous white indices and hands provide a strong contrast to the blue dial, ensuring outstanding readability at all times. The distinctive colours of the U1 B are further emphasised by a blue silicone strap.

The case made of high-strength German Submarine Steel is extremely seawater-resistant and also possesses the highest level of non-magnetic properties. Hardened using TEGIMENT Technology and therefore especially scratch-resistant, the captive diver’s bezel with minute ratcheting is virtually impossible to detach by being knocked off.

DNV verifies and certifies the pressure resistance of the U1 B to a diving depth of 1,000 metres and its temperature resistance and functionality in accordance with the European diving device standards. Users of the U1 B can thus be assured that they are wearing a precise and reliable diving watch on their wrist.

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
• 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
• Waterproof and pressure-resistant to 1,000 m diving depth (= 100 bar), certified by DNV
• According to the technical demands for the German diving norm DIN 8306
• Tested based on European diving equipment standards EN 250 / EN14143 and certified by DNV
• Low pressure resistant

Functions

• Hours, minutes, seconds
• Date display
• Diver’s bezel with minute ratcheting and luminous key mark

SINN Technologies

• Bezel with TEGIMENT Technology, therefore especially scratch-resistant
• Captive diver's bezel

Dial and Hands

• Matte blue dial
• Indices coated with luminescent colour
• Hour, minute and second hand coated with luminescent colour

• Case diameter: 44 mm
• Band lug width: 22 mm
• Case thickness: 14.7 mm
• Weight without strap: 113 gramme