Swiss Valjoux 92 17 jewel manual wind.
Functions:
30 min, 60 sec registers chronograph. Certified chronmeter.
Highly polished finish. Solid Stainless steel.
Duo-Directional rotating, ratcheted, 0-60 countdown. Black color.
Sport style, screw-down (threaded). Traditional style Pushbuttons.
Black color. Tachymetre scale.
Case Back:
Screw-down style ( threaded ). Bjjrs engraving.
Black color. Genuine leather. New.
Other:
Production date circa 1980's.