PATEK PHILIPPE "Big Arabic - Perpetual Calendar Reference 1526 Movement n°925289 Case n°636842 Reference produced from 1941 to 1952 Historic wristwatch in 18k (750) yellow gold with perpetual calendar and moon phases Case: round, fluted crown, concave bezel, correctors on the case middle, case back pressure closure with manufacturer's key "9", inside the case special marking for import into France "Fab. Suisse" with owl head hallmark, signed Dial: Silvered with large "Big Arabic" numerals and raised dot indexes, stylised hands, double window indicating the days of the week and months, sub-dial for the date and subsidiary seconds, opening for the phases of the moon, railway track minute track, long "Patek Philippe & Co" signature with the words "Fab. Suisse". Movement: mechanical with manual winding, Côtes de Genève decoration, cal. 12"120 Q, signed Strap / Buckle: 18k (750) yellow gold pin buckle, signed "PP.Co Diameter: 34 mm Weight: 55.20 grams With: extract from the archives of the Manufacture Patek Philippe Provenance: kept in the family by the descendants of Pierre Rey Historical 18k (750) yellow gold wristwatch with perpetual calendar and moon phases Case: Round, fluted crown, concave bezel, correctors on the case band, snap-on caseback bearing the maker's key "9"; inside, a special hallmark for import into France "Fab. Suisse" with the owl's head hallmark, signed Dial: Silvered with large "Big Arabic" numerals and raised dot markers, stylized hands, double window for day and month indications; subsidiary dial for date and small seconds; aperture for moon phases; railway minute track; long signature "Patek Philippe & Co" with the "Fab. Suisse" mention Movement: Manual winding mechanical, Geneva stripes decoration, cal. 12"120 Q, signed Strap / Buckle: 18k (750) yellow gold pin buckle, signed "PP.Co" Diameter: 34 mm Weight: 55,20 grams With: extract from the archives of the Patek Philippe manufacture Provenance: kept in the family by the descendants of Pierre Rey CONDITION REPORT : When the catalogue was written the movement was working. Few signs of use. Please note that chronometric accuracy is not guaranteed and Artcurial cannot be held responsible for any repair costs. CONDITION REPORT : At the time of cataloguing the movement is running. Good condition. Few signs of use. Please note that the movement has not been checked for timekeeping accuracy and Artcurial will not be held responsible for any repairs that must be required. Watches and clocks are sold as is. No warranty is given as to the working order of the watches and clocks. Most watches have been opened to identify the type and quality of the movement, including water-resistant watches, so the buyer is advised to consult a watchmaker to review the water-resistance of the watch. Strap changes, water-resistance, restorations, revisions and adjustments are the responsibility of the purchaser. Artcurial will not be responsible for any restoration estimate from any watchmaker whatsoever. Watches and clocks are sold "as is". No guarantee is given as to the working order of the watches and clocks. Most watches have been opened to identify the type and quality of the movement, including water-resistant watches, so the buyer is advised to consult a watchmaker to review the water-resistance of the watch. Strap changes, water-resistance, restorations, revisions and adjustments are the responsibility of the purchaser. Artcurial will not accept any restoration estimate from any watchmaker.