Sinn Spezialuhren 140 St S

The Sinn 140 St S, reference 140.030, is a chronograph with a 44 mm steel case water resistant to 100 metres. Black Hard Coating covers the TEGIMENT-hardened surface of the bead-blasted case, which is 15 mm thick. A sapphire crystal fronts the matte black dial with its date display and small seconds. The interior pilot's bezel has a luminous key mark. Self-winding calibre SZ01 has a centrally mounted stopwatch minute hand. Ar-Dehumidifying Technology reduces fogging, while the crown and push-pieces use the D3-System.