PATEK PHILIPPE PERPETUAL RETROGRADE QUANTIEME Reference: 5059G. Serial number: 4138665. 18k white gold case. White dial, Roman numeral hour markers, complete perpetual calendar with day, month, retrograde date and moon phase. Self-winding mechanical movement (Calibre 315 S QR), No. 1958749. Leather strap with white gold folding clasp, signed. Sapphire crystal. Circa 2002. Diameter: 36 mm. Gross weight: 104.5 g. Accompanied by its case and archive extract. A very fine 18k white gold wristwatch perpetual calendar, moon phases, automatic movement, by Patek Philippe. Circa 2002.