Aste Bolaffi Lot soldUSD 1 665 - 3 329EUR 1 400 - 2 800 (listed)EstimateUSD 1 665 - 3 329EUR 1 400 - 2 800 (listed) See all lots Watch Co. Ld Aste Bolaffi - Watch Auction - Milan, October 21 | Milano, 21 October Summary Movement Handwinding Year of manufacture 1955 Lot number 80 Case material Steel Diameter 35mm Bracelet material Steel Location Watch type Men/Unisex Description 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.