Patek Philippe Perpetual Calendar Ref. 5940R-001 The Patek Philippe ref. 5940R-001 is the ultra-thin perpetual calendar in a 37 × 44.6 mm rose-gold cushion case, with a silvered dial and pink-gold Breguet numerals. It joined the 5940 line in 2014 and is no longer part of Patek Philippe's collection. - Self-winding micro-rotor Calibre 240 Q - Perpetual calendar with moon phase - 37 × 44.6 mm rose-gold cushion case - Silvered dial, pink-gold Breguet numerals - Alligator strap with rose-gold buckle Full set. Maker: Patek Philippe. Reference: 5940R-001. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request.