Patek Philippe 3940R Perpetual Calendar Rose Gold Silver Dial PATINA / Deployant (31445)

31445 Patek Philippe 3940 R Perpetual Calendar 3940R, 3940R, 18K rose gold on a strap with an 18K rose gold deployment buckle, automatic perpetual calendar (English) with, day, date, month, moonphase, 24 hours indicator, leap year indicator, silver dial with rose gold stick markers, the subdial has developed a very unique purple patina, sapphire crystal, water resistant, diameter: 36mm, thickness: 9mm, Like New Patek Philippe box, instruction booklet, and Patek Philippe Extract from Archives dated 2002.


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More about Patek Philippe 3940R Perpetual Calendar Rose Gold Silver Dial PATINA / Deployant

This is an 18K yellow gold Patek Philippe Perpetual Calendar 3940R. It has a leather strap with an 18K yellow gold tang buckle, and a scratch resistant sapphire crystal. There is a corrector in the left-side case band at 9 o'clock for the perpetual calendar, and the 36mm diameter solid three-body case, downturned lugs, and stepped bezel are polished. The silver dial has "boat-shaped" gold baton and square hour markers around a dot minute track. There is a recessed moon phase subsidiary dial at 6 o'clock, with a combined radial date indicator and a gold hand. There are twin recessed silver subsidiary dials, including a combination day and 24-hour register at 9 o'clock, and a combination month with leap year sub dial is at 3 o'clock. It has a 46-hour power reserve at full wind, and it’s water resistant to 25 meters/80 feet. The 9mm thick case, dial, and movement are all signed.

This Patek Philippe Perpetual Calendar 3940R has a mechanical automatic self-winding Patek Philippe caliber 240 Q movement that's rhodium-plated with fausses cotes embellishment. It has the Seal of Geneva quality seal, and it's constructed with 27 jewels, 275 parts, and a lateral lever escapement with three arms under a polished steel bridge. It has a 22K winding rotor with the Patek Philipppe Calatrava symbol, and a patented Patek Philippe Gyromax balance that adjusts for cold, heat, isochronism and 5 positions. It includes a shock absorber mechanism, and a self-compensating free-sprung Breguet balance spring. The mechanism oscillates at a frequency of 28,800 vph (4 Hz).

The Patek Philippe Perpetual Calendar 3940R was introduced in 1985, and was discontinued in 2006.