Sinn Spezialuhren U1 S E

The Sinn U1 S E, reference 1010.023, is a 44 mm dive watch in German Submarine Steel, water resistant to 1000 metres. Black Hard Coating rests on a TEGIMENT-hardened surface. The case measures 14.7 mm thick and has a screw-down crown. Ivory-coloured luminous hands and indices mark the matte black dial beneath sapphire crystal. Central seconds and a date share that display. Automatic winding is provided by calibre SW200-2. The captive diver's bezel has minute ratcheting.