Patek Philippe 5960/1A-001 Annual Calendar 5960 Chronograph SS Silver Dial FULL SET (35323)

35323 Patek Philippe 5960/1A Annual Calendar Chronograph, 5960, 5960/1A-001, 59601A001, stainless steel on a stainless steel bracelet, automatic caliber CH 28-520 IRM QA 24H, 55-hour power reserve, annual calendar indicator, 12-hour chronograph, power reserve indicator, light silver dial, black stick numerals, red chronograph seconds hand, sapphire crystal, display back, water resistant, size 40.5mm, thickness 13.5mm. Like New with box and papers dated June of 2018.


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More about Patek Philippe 5960/1A-001 Annual Calendar 5960 Chronograph SS Silver Dial FULL SET

This is a stainless steel Patek Philippe Annual Calendar Chronograph 5960/1A-001. It has an stainless steel multi-link bracelet with a double deployant buckle, and a scratch resistant sapphire crystal. There are correctors in the band and a screw-down transparent sapphire crystal case back. The 40.5mm diameter solid two-body case, downturned lugs, and concave bezel are polished. The light silver dial has applied black steel faceted baton hour markers, luminous dots, and steel luminous feuille hands, as well as a center sweep red chronograph seconds hand. It has outer minute and 1/5th seconds divisions, and a guilloche silver subsidiary dial for the combined 30/60-minute and 12-hour totalizer. There is a power-reserve indicator at 12 o'clock, apertures for the days of the week, the date, the months, as well as a day/night indicator. It has a round button fly back chronograph and it's water resistant to 30 meters/100 feet. It has a 55-hour power supply, and the 13.5mm thick case, dial, and movement are all signed.

This Patek Philippe Annual Calendar Chronograph 5960/1A-001 has a mechanical automatic self-winding caliber CH 28-520 IRM QA 24H movement. It's rhodium-plated with causses cotes embellishment, and it's stamped with the Patek Philippe seal. It's constructed with 40 jewels, 456 parts, and a straight-line lever escapement. There is a shock absorber mechanism and the patented Patek Philippe Gyromax balance that compensates for cold, heat, isochronism, and 5 positions. It has a self-compensating free-sprung Breguet balance spring, and a 21K gold rotor with oil-free ball bearing and zirconium balls. It has a power reserve of up to 55 hours

In 1996 Patek received a patent for their Annual Calendar mechanism, while their annual calendar watch (only having to be manually adjusted once every 365 days) was selected watch of the year in the Basel show. They've been making the finest chronographs since the 1920's; this complicated model was introduced in 2006 and remains in current production.