Fortis Official Cosmonaut Chronograph model 631.22.31M, powered by a Swiss made Valjoux 7750 Automatic movement with day/date window and a stopwatch with 60 second, 30 minute, and 12 hour registers. Black dial, very luminous large markers, bright orange signature second hand. Sandblasted stainless steel case and bracelet, plus a zipped carrying case that includes Velcro and leather extra straps with tool. 200 meters water resistant.
Factory Model Number. 6312231M.
12 hr, 30 min, 60 sec registers chronograph. Day/Date calendar, window display.
Sandblasted finish. Solid Stainless steel.
Uni-Directional rotating, ratcheted, 0-60 Elapsed-Time.
Factory Logo engraved/embossed. Sport style, screw-down (threaded). Sport style Pushbuttons, screw-down (threaded).
Flat profile. Sapphire. Anti-Glare treated.
Black color. Luminous ( radiation-free Super-LumiNova ) hour markers.
Baton style. Super-LumiNova radiation-free luminous filled. Bright orange second hand with luminous dot.
Sandblasted finish. Solid Stainless steel. All factory links are in.
Tri-fold, Sport style, with security flip-lock and over-the-wetsuit expansion. Factory Logo engraved/embossed.