UNBRANDED CHRONOGRAPH, '50S
Two body circular stainless steel case, n. 24513, stepped bezel, concave faceted lugs, screw back, pump pushers. Steel bracelet with hexagonal links.
Glossy black dial, gilt Arabic numerals, minutes division with 1/5th of second fractions, subdials with concentric engravings for seconds and 30-min counter. Bâton hands.
Manual winding movement, nickel-plated caliber Valjoux 23, column wheel system, lever escapement, monometallic balance with screws, blued Breguet hairspring, Incabloc shock-absorber.
Diameter Ø: 35 mm
Note: working.