Brand Audemars, Wittnauer & Co., Geneva Model - Retailed by made by Audemars Piguet, Le Brassus (Vallée de Joux) and Geneva Year circa 1893 Reference - Movement No. 4 807 Calibre 18’’’, manual-winding, probably 31 jewels Case No. 5 266 Material/s yellow gold (18-carat) Bracelet - Buckle - Dimensions Ø 49.3 mm. Thickness 14.9 mm. Length - Weight 95.1 gr. (approx.) Signature dial and movement Accessories contemporary fitted box Audemars Wittnauer & Co. Pocket watch, with four horological complications, including, minute-repeater, chronograph, split-seconds, minutes counter; yellow gold (18-carat) Yellow gold (18-carat), open-face, keyless-winding, round-shaped, pocket watch, with subsidiary seconds at 6 and four horological complications: · Minute-repeater by two hammers on two steel gongs (activated by the slide located on the case-band at 8 o’clock) · 1/5 second chronograph (activated by the crown at 12 o’clock; start, stop and return to zero functions), with outer ring divided in 60 · Split-seconds function (activated by the rectangular-shaped push-piece located on the case-band at 11 o’clock) · 30-minute counter (subsidiary dial at 6 o’clock) Winding and time-setting by the crown on the pendant. Case: four-piece, ‘Bassine, à gouttes’, polished; yellow gold cuvette (dome); oval-shaped clipped bow. Cuvette (dome) engraved in taille-douce (fine cut) ‘William from Winifred / Mar 3 1910’. Dial: white colour enamel (three-piece), with black painted suspended Arabic numerals; external timer rail divided from five to five; second outer rail with subdivisions to the fifth of a second for the chronograph with red painted radiating Arabic numerals divided into 60; blued steel ‘Poire Stuart’ pear-shaped hands. Movement: calibre 18’’’, manual-winding, probably 31 jewels, rhodium-plated with ‘fausses côtes’ decoration, going barrel, straight-line equilibrated lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index-regulator with swan-neck spring and micrometric screw, adjusted ‘Extra’; repeater work on the main plate, under the dial; chronograph work on the top plate.
