Sinn Spezialuhren 757 S UTC

The Sinn 757 S UTC, reference 757.021, is a steel chronograph measuring 43 mm across, with a second time zone. The 15 mm thick case is water resistant to 200 metres and carries Black Hard Coating over a TEGIMENT hardened base. Silver labelling marks the captive pilot's bezel, which ratchets in minute steps. The matte black dial shows the date under sapphire crystal. A self-winding movement carries the calibre designation Valjoux 7750. Ar-Dehumidifying Technology limits fogging, and the crown uses a D3-System.