An 18 Karat Yellow Gold Chronograph Wristwatch, Vacheron Constantin, 34.00 mm case diameter, matte gilt dial signed VACHERON & CONSTANTIN, applied Arabic and dot numerals, outer tachometer calibrated to 600 units, subsidiary dials at 3 and 9 o'clock for chronograph minutes and small seconds respectively, gold baton hands with center sweep chronograph seconds hand, concave lugs, snap on case back, manual wind jeweled nickel plated movement with fausses ctes finish signed VACHERON & CONSTANTIN, black lizard strap, later silver tone tang buckle.Movement number: 446401.Case number: 291800.