Sinn Spezialuhren 103 St Sa Lufthansa

The Sinn 103 St Sa Lufthansa, reference 103.231, is a chronograph limited to 100 pieces with a polished 41 mm steel case. A second time zone appears on the dark grey dial beneath sapphire crystal. Yellow stopwatch hands contrast with light grey indices and the date display. Self-winding operation comes from calibre SW500. The 17.2 mm case has a see-through back and is water resistant to 200 metres. A captive pilot's bezel surrounds the face. The stopwatch seconds hand ends in a stylised aircraft-window shape.