No other watchmaker is more closely linked with the perpetual calendar than Patek Philippe, an association that goes all the way back to 1925, when it created the first perpetual calendar wristwatch. In a trailblazing run since, the brand introduced the retrograde perpetual calendar wristwatch (1937), perpetual calendar chronograph (1941), sweep seconds perpetual calendar wristwatch (1944) and self-winding perpetual calendar (1962), each time setting new benchmarks for the mastery of this grand complication.
Patek Philippe Ref 5320G-001 Perpetual Calendar 40mm case in white gold; lacquered cream dial with gold applied numerals with luminescent coating; interchangeable full back and sapphire-crystal caseback; Caliber 324 S Q self-winding mechanical movement; day, month, leap year and day/night indication in apertures; date by hand; sweep seconds hand; power reserve of 45 hours
Patek Philippe Ref 5327J-001 Perpetual Calendar 39mm case in yellow gold; ivory lacquered dial with gold applied Breguet numerals; interchangeable full back and sapphire-crystal caseback; Caliber 240 Q ultra-thin mechanical self-winding movement; functions of day, date, month, leap year and 24-hour indication by hands; moon phases; power reserve of 48 hours.
Patek Philippe Ref 7140R-001 Ladies First Perpetual Calendar 35.1mm case in rose gold; silvery-white opaline dial with gold applied hour markers; bezel set with 68 diamonds; prong buckle set with 27 diamonds; interchangeable full back and sapphire-crystal caseback; Caliber 240 Q ultrathin mechanical self-winding movement; day, date, month, leap year and 24-hour indication by hands; moon phases; power reserve of 48 hours.
Patek Philippe Ref 5159G 001 Perpetual Calendar with Retrograde Date Hand 38mm case in white gold; white opaline dial with handguilloched centre and black Roman numerals; sapphirecrystal caseback protected by a hinged dust cover; Caliber 324 S QR self-winding mechanical movement; day, month, leap year in apertures; sweep seconds hand; power reserve of 45 hours.
Patek Philippe courtesy of The Hour Glass
