PATEK PHILIPPE | A RARE AND IMPORTANT YELLOW GOLD OPEN FACED PERPETUAL CALENDAR SPLIT SECONDS CHRONOGRAPH MINUTE REPEATING WATCH WITH MOON PHASES MADE IN 1911

Dial: white enamelCaliber: 19'" ligne movement, 39 jewels, two hammer repeating on two gongsMovement number: 157376Case: 18k yellow gold, varicolored enamel monogrammed hinged case backCase number: 272631Dimensions: 54 mm diameterSigned: case, dial and movementAccessories: Patek Philippe Extract from the Archives confirming the date of sale on September 18, 1912, the case back engraved with the initials "W.A.B." over three enamel colors. Additionally accompanied by a letter written to Mr Dominic J. Riat confirming archive details of the watch written by Alan Banbery for Patek Philippe dated November 5, 1976.