Patek Philippe. A Fine 18k Pink Gold Automatic Perpetual Calendar Wristwatch with Leap Year Indicator, Moon Phases, and Retrograde Date

Accompanied by a Patek Philippe Certificate of Origin dated March 1999, an additional solid case back, setting pin, product literature, Patek Philippe leather envelope, Patek Philippe presentation box and outer packaging.

Reference 5050, Patek Philippe's first perpetual calendar wristwatch featuring a retrograde date made in series, was introduced at Baselworld in 1993, cased in yellow gold only. As of 1995, it was also available in pink gold, white gold and platinum, but still exclusively with the silvered dial, applied Roman numerals, an aperture for the phases of the moon, the very first examples with outer railway minute divisions. Following substantial demand from clients, Patek Philippe introduced a second version featuring applied baton indexes, a modified moon phases display now in form of a circular subsidiary dial, outer beady minute divisions and the addition of the designation "Automatic".

Discontinued in 2002, reference 5050 is today a highly sought after collector's watch, a modern classic enjoying popularity both amongst scholars and aficionados for day-to-day wear.

Reference 5050 is illustrated in Patek Philippe Wristwatches by Martin Huber & Alan Banbery, second edition, p. 296.