Patek Philippe Annual Calendar Ref. 4936

In 2005, Patek Philippe launched a ladies’ version of its famous Annual Calendar watch. This feminine model in 18K gold (Ref. 4936) features a mother-of-pearl dial and diamond-studded case.

Introduced in 1996, the first Patek Philippe Annual Calendar watch (Ref. 5035) was originally designed for men. Featuring a 37mm case and a patented movement, it was preferred by women, thanks to its functionality, convenience and handsome proportions.

In 2005, to address women’s increasing interest in mechanical masterpieces, Patek Philippe developed this complication watch. It was released along with Ref. 5146, an evolution of men’s annual calendar watch.

The Ref. 4936 features a 37 mm case, the same as the Ref. 5035 Annual Calendar watch introduced in 1996.

Patek Philippe Ladies' Annual Calendar Watch Ref. 4936

Available in 18K yellow or white gold, the bezel of the Ref. 4936 is set with 156 flawless rare white Top Wesselton diamonds. Two different-sized diamonds are perfectly aligned, requiring the extraordinary skills of the master jeweler.

The dials of this Patek Philippe Annual Calendar Ladies watch are crafted from authentic mother-of-pearl – white for the yellow gold case and black Tahitian mother-of-pearl for the white gold model.

Patek Philippe Annual Calendar Ref. 4936

The subsidiary dials for the day of the week and month are also made of genuine mother-of-pearl encircled by gold rings for extra sparkle. Time is indicated with applied gold Roman numerals and luminescent, gold feuille (leaf-shaped) hands.

The phases of the moon are shown in a crescent window above the date aperture at 6o’clock. The crown glistens with 14 diamonds set within its perimeter for a smooth finish so it is comfortable against the wrist. The hand-stitched alligator strap closes with an 18K gold buckle in two tones: matte champagne for yellow gold and luminous gray with white gold.

The self-winding movement can be admired through the sapphire-crystal case back; like all mechanical movements crafted by Patek Philippe, it is marked with the coveted Geneva Seal.

Technical details

Model: Patek Philippe Ref. 4936 J/G

Caliber 315 S QA LU
Self-winding mechanical movement, Annual Calendar, moon-phase display and sweep seconds
Diameter: 30 mm
Height: 5.22 mm
Number of parts: 328
Number of jewels: 34
Power reserve: Min. 38 hours, max. 48 hours
Rotor: 21K gold central rotor, unidirectional winding
Balance: Gyromax
Frequency: 21,600 semi-oscillations per hour
Balance spring: Flat

Two-position crown
– Pulled out: to set time
– Pushed in: to wind watch

Hours, minutes, sweep seconds
Subsidiary dials:
– Days between 9 and 10 o’clock, months between 2 and 3 o’clock
– Moon phase at 6 o’clock
– Date at 6 o’clock

Corrector button
At 10 o’clock: day-of-week correction
At 2 o’clock: month correction
At 4 o’clock: date and month correction
At 8 o’clock: moon-phase correction

Geneva Seal

18K yellow or white gold
Diameter: 37 mm
Thickness: 11.30 mm
Width between lugs: 19 mm
Screwed sapphire-crystal case back and water-resistant crown
Water resistant to 25 meters

White mother-of-pearl for yellow gold model
Black Tahitian mother-of-pearl for white gold model
Eleven applied Roman numerals with luminescent coating, railway-track minute scale
Feuille (leaf-shaped) hands in 18K yellow or white gold with luminescent coating (Superluminova)

Subsidiary dials
Recessed with circular guilloche pattern encircled by ring in 18K yellow or white gold
Frosted feuille (leaf-shaped) hands in 18K yellow or white gold

Hand-stitched alligator, with 14 mm prong buckle in 18K yellow or white gold. Matte champagne strap for yellow gold model and glossy gray for white gold model

Precious stones

Case: 78 flawless rare white Top Wesselton round diamonds, full cut, 1.10mm in diameter and 78 flawless rare white Top Wesselton round diamonds, full cut, 1.20 mm in diameter totaling about 0.87 carats

Crown: 18K rose or white gold, set with 14 flawless rare white Top Wesselton round diamonds, full cut, 1.10 mm in diameter totaling about 0.07carats