Patek Philippe Retrograde Perpetual Calendar 18K Yellow Gold Ref. 5050J
Manufacturer: Patek Philippe
Model: Perpetual Calendar
Reference Number: 5050J
Condition: Very good
Time Period: 1997
Retail / Compare-At Price: $71,000
Our Best Price: $52,950
Caliber: 315S QR aut.
Case Material: 18K yellow gold
Case Diameter: 36 mm
Thickness: 11.12 mm
Waterproof: 100 ft./30 m.
Water Resistance: 3 ATM
Material Bezel: Fixed cupped 18K yellow gold
Glass: Sapphire crystal
Dial: Opaline white
Dial Numerals: 18K yellow gold applied baton hour indices and beady minute divisions, arched retrograde calendar sector with black Arabic numerals between 8 and 4 o'clock
BRACELET / STRAP
Bracelet color: Brown
Bracelet Material: Leather
Clasp: Tang buckle
Clasp material: 18K yellow gold
Perpetual calendar, hours, minutes, day aperture at 9 o’clock,
retrograde calendar and central fly back date hand, month aperture at 3 o’clock, moon phases subsidiary dial at 6 o'clock, leap year indication at 12 o’clock , sweep center seconds, 46-hour power reserve
Three apertures for day, month and leap year indication
18K yellow gold applied leaf shaped hands, anthracite stick shaped sweep center seconds
Arched retrograde calendar sector with Arabic numerals and black central date fly back stick shaped hand
Solid three-body case, curved downturned lugs and bezel are polished, and all hallmarks are clear and bold
Original Patek Philippe buckle, case, dial and movement are signed.
Push/pull 18K yellow gold crown with Calatrava cross engraved
Screw-down exhibition sapphire display case back with the Calatrava emblem visible on the gold rotor
Day and month apertures are in English.
Four correction push pieces to adjust the calendar indications and the moon phase display: month correction between 3 and 4 o'clock, date correction between 11 and 12 o'clock, moon phase correction between 5 and 6 o'clock and day of week correction between 6 and 7 o'clock.
This Patek Philippe caliber 315/136 movement is rhodium-plated, with fausses côtes embellishment. It has the Geneva seal of quality as well as the Patek Philippe stamps. It's constructed a Kif shock protection device, and a straight-line lever escapement. It includes a Gyromax balance that's adjusted to heat, cold, isochronism and 5 positions, a 21K gold winding rotor, and a self-compensating free-sprung flat balance spring.
The mechanism oscillates at a frequency of 21,600 vph (3 Hz).
The Patek Philippe Perpetual Calendar Retrograde Ref. 5050J was the first perpetual calendar that Patek produced with a retrograde date display.
Complete (box and papers dated 1997)