Sinn Spezialuhren EZM 13.1

The Sinn EZM 13.1, reference 613.011, is a chronograph in a bead-blasted steel case measuring 41 mm. The case is water resistant to 500 metres and measures 15 mm thick, with a screw-down crown on the left. Self-winding calibre SZ02 has protection against magnetic fields. Luminous indices punctuate the matt black dial beneath sapphire crystal, alongside the date and small seconds. Ar-Dehumidifying Technology helps prevent fogging. The captive rotating diver's bezel has minute ratcheting.