Sinn - U1 S


Strap Type

Product Details

The U1 S is an attractive new version of one of our most popular diver’s watches, the U1. Previously, the U1 was available with a black diver’s bezel. As the U1 S, the watch now comes with an all-over Black Hard Coating on a tegimented basis, which further highlights its design.

The case and crown of the U1 S are made of high-strength seawater-resistant German Submarine Steel. As well as having extreme seawater resistance, this material possesses the highest level of non-magnetic properties. Thanks to its captive design, it is virtually impossible for the diver’s bezel with minute ratcheting to become detached from the case as a result of hard knocks.

The watch has been checked for pressure resistance and tested based on European diving equipment standards and certified by DNV. This confirms that it is highly reliable.

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 made of German Submarine Steel, black
  • 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
  • Hours, minutes, seconds
  • Date display
  • Diver’s bezel with minute ratcheting and luminous key mark
SINN Technologies
  • Black Hard Coating on a TEGIMENT Technology basis
  • Captive diver's bezel
Dial and Hands
  • Matte black 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

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