Sinn Spezialuhren GmbH ●

Im Füldchen 5 – 7 ●

60489 Frankfurt am Main ●

+49 (0)69-978414-200

• Case made of high-strength seawater-resistant German submarine steel
• Tested and based on European diving equipment standards and certified by Germanischer Lloyd, Hamburg
• Case and bezel made with Black Hard Coating on a TEGIMENT Technology basis
• Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
• Functionally reliable from –45 °C up to +80°C
• Captive diver's bezel with minute ratcheting
• Crown at 4 o'clock to prevent pressure on the back of the hand
• Second time zone on a 24-hour basis
• Mission timer design for optimal readability
• Sapphire crystal glass
• Pressure-resistant to 2,000 m diving depth (200 bar), certified by Germanischer Lloyd Hamburg
• Low pressure resistant

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The diving watch U2 is a professional mission timer which uses genuine German submarine steel, a material with extreme seawater-resistance and the highest level of non-magnetic properties. In the movement itself, functional reliability between -45 °C and +80 °C is ensured by the SINN special oil 66-228. And that's not all: with the diver's bezel, this diving watch is well-equipped to measure the duration of a dive accurately.

Fogging of the dial poses a safety risk when diving. To prevent this, we use EDR seals. This material, with its extreme chemical resistance and only a quarter of the gas permeability of conventional seals, prevents moisture from diffusing into the diving watch. The slightly domed, 4.2 mm thick scratch-resistance anti-reflective sapphire crystal glass withstands even the highest pressures. The case is filled with a protective gas, while three drying capsules keep the interior dry.

• Mechanical Movement
• • ETA 2893-2
  • Self-winding mechanism
  • 21 bearing jewels
  • 28,800 semi-oscillations per hour
  • Seconds stop function
  • Shock resistant as per DIN 8308
  • Anti-magnetic as per DIN 8309

• Case
• • Case made of German submarine steel, black
  • Sapphire crystal glass in front, anti-reflective on both sides
  • Case back screw-fastened
  • Crown screwable
  • Water-resistant as per DIN 8310
  • Pressure-resistant up to 2,000 m diving depth (= 200 bar), certified by Germanischer Lloyd Hamburg
  • According to the technical demands for the diving norm DIN 8306
  • Tested based on European diving equipment standards EN 250 / EN14143 and certified by Germanischer Lloyd Hamburg
  • Low pressure resistant

• Functions
• • Hours, minutes, seconds
  • Second time zone on a 24-hour basis
  • Date display
  • Pilot’s bezel with minute ratcheting and luminous key mark

• SINN Technologies
• • Black Hard Coating on a TEGIMENT Technology basis
  • Captive bezel
  • Ar-Dehumidifying Technology enhances functional reliability and
  • freedom from fogging
  • Temperature resistance technology, therefore functionally reliable at temperatures from -45°C up to +80°C

• Dimensions and Weight
• • Case diameter: 44 mm
  • Band lug width: 22 mm
  • Case thickness: 15.5 mm
  • Weight without strap: 114 gramme

• Dial and Hands
• • Matte black dial
  • Indices coated with luminescent colour
  • Hour, minute and second hand coated with luminescent colour

• Warranty
• • 3 years