Sinn Spezialuhren 900

The Sinn 900, reference 900.010, is a chronograph with a 44 mm satinised steel case, 15.5 mm thick and water resistant to 200 metres. The black electroplated dial displays a second time zone, small seconds and a date through sapphire crystal. Automatic winding is provided by calibre Valjoux 7750. TEGIMENT Technology makes the case surface scratch resistant. Magnetic Field Protection reduces the movement's exposure to magnetic fields. Ar-Dehumidifying Technology limits fogging and helps maintain functional reliability.