Patek Philippe Perpetual Calendar, Retrograde Date Ref. 5159G-001 The Patek Philippe ref. 5159G-001 is a perpetual calendar with retrograde date in a 38 mm white-gold officer's case with a hinged dust cover, around a silvered guilloché dial. It was produced until 2020 and is no longer part of Patek Philippe's collection. - Self-winding Calibre 324 S QR - Perpetual calendar with retrograde date, moon phase, leap year - Centre seconds - 38 mm white-gold officer's case with hinged dust cover - Silvered guilloché dial; white-gold folding clasp Full set. Maker: Patek Philippe. Reference: 5159G-001. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request.