A very fine and rare, Perpetual Calendar, leap year indicator, moon phases, wristwatch in yellow gold, with original certificate.
Model Perpetual Calendar Reference 3941J Case Material Yellow gold Bracelet Material Leather strap Year 1989 Movement Automatic, cal. 240Q, 27 jewels Case N° 2'866'901 Movement N° 771'874 Dimensions 36mm Diameter Signed Case, dial and movement Accessories Accomapgned by Patek Philippe certificate of origin dated Apr. 26th, 1990, extract from the archives, leather wallet, setting pin and booklets
The Patek Philippe reference 3941, launched in 1986, is a remarkable timepiece that was developed in response to the increasing demand from customers wanting to view the intricate 240Q caliber, and stands apart with its sapphire crystal case back, offering a clear view of the Geneva Seal movement and the micro rotor enabling the use of its slim Calatrava style case. While the sister ref. 3940 enjoyed a production run until 2007 and was encased in various materials, including yellow, pink, and white gold, as well as platinum, the reference 3941 had a notably shorter production period, lasting only until 1990. This brevity has cemented its status as an exceptionally rare and sought-after piece among collectors, with fewer than circa 40 examples known to have resurfaced on the auction market since its debut. Crafted predominantly in yellow gold, the reference 3941 is a paragon of understated elegance, its balanced dial layout seamlessly integrating day, date, month, moon phase, and leap year indicators into a harmonious design. The present example of the reference 3941, produced in 1989 and accompanied by its original certificate of origin confirming its sale in April 1990, represents a rare opportunity for discerning collectors. The visible hallmarks and attractive overall condition of this piece enhance its appeal, while its rarity and historical significance elevate it to the status of a true collector’s item. 
