Pocket watch: exquisite Vacheron & Constantin Ankerchronometer with chronograph and register, in nearly like new condition with original box and extract, Geneva ca. 1916

Ca. Ø51.5mm, ca. 91g, 18K gold, special case with very beautiful integrated hinge, case hallmark Vacheron & Constantin No. 231416, very fine Ankerchronometer movement with especially large chronometer balance, fine adjusting device, chronograph with register, movement also signed Vacheron & Constantin, No. 374500, signed original enamel dial with 30-minutes-counter, golden hands, rare original box with double signature Vacheron & Constantin and J.A.M. Mulder La Haye, in excellent condition, hardly used, case with small signs of use, in working order. This chronograph is a special quality, a rare Ankerchronometer. Comparable pieces have been sold for ca. 15,000€/ Swiss Francs, e.g. in the special auction "The Quarter Millennium of Vacheron & Constantin" (source: https://www.cortrie.de/go/K21).