FS: Vintage Sinn 142 D1 Space Chronograph w/tritium dial on bracelet.

This is a vintage Sinn 142 D1 in great condition. The Sinn 140/142 series is iconic in space exploration history, renowned for proving automatic chronographs function in zero gravity. In 1985, German physicist Reinhard Furrer wore a Sinn 140 S on the D1 Spacelab mission, with the 142 series later worn on the 1992 Mir-92 mission and 1993 D2 Spacelab mission. Bracelet will fit up to 7.4 inch wrist. Crystal is clean. Lovely patina to the markers and hands. Desirable tritium marked dial. L