The ladies' Ref. 4899 Haute Joaillerie wristwatch combines two highly artistic skills mastered by Patek Philippe: Watchmaking and gemsetting. This high jewellery timepiece dressed in white gold, set with flawless rare white Top Wesselton diamonds and rose sapphires, proudly displays a stunning mother of a pearl dial. It combines finesse with the graceful elegance of the ultra-thin self-winding caliber 240 movement that celebrates its 40th anniversary this year.
Turning back, the sapphire-crystal back showcases the ultra-thin self-winding caliber 240 featuring a 22K gold rotor. It displays the same Geneva striping as the bridges. Their elegant contours are highlighted by the polished, chamfered edges. The red rubies and gold-filled engravings gleam brightly, creating attractive contrasts. A closer look exposes the manually applied perlage on the plate and the gentle golden hue of the brass wheels as well as the Gyromax® balance; it oscillates very precisely, assuring a daily rate tolerance of -3 to +2 seconds.
Model: Calatrava Ref. 4899/900G
Ultra-thin self-winding mechanical movement
Diameter: 27.5 mm
Height: 2.53 mm
Number of parts: 159
Number of jewels: 27
Power reserve: Min. 48 hours
Winding rotor: 22K gold minirotor, unidirectionally winding
Frequency: 21,600 semi-oscillations per hour (3 Hz)
Balance spring: Spiromax® (in Silinvar®)
Balance spring stud: Adjustable
• Pushed home: To wind the watch
• Pulled out: To set the time
Hours and minutes
Patek Philippe Seal
18K white gold
Sapphire-crystal case back
Water resistant to 30 m (3 bar)
Set with 149 flawless rare white Top Wesselton diamonds (~ 1.1 ct.) and
182 rose sapphires of varying color intensity (~ 1.93 ct.)
Crown with sapphire cabochon (~ 0.11 ct.) and 36 flawless rare white Top
Wesselton diamonds (~ 0.04 ct.)
Diameter (10 to 4 o'clock): 39 mm
Width (9 to 3 o'clock incl. crown): 40.95 mm
Length (across lugs): 45.8 mm
Overall height (crystal to lugs): 7.0 mm
Height (crystal to display back): 6.7 mm
Width between lugs: 20 mm
Natural mother of pearl on white gold
Upper dial half: Hand-engraved feather motif
Lower dial half: Random setting with gems of various sizes
89 flawless rare white Top Wesselton diamonds (~ 0.27 ct.) and 98 rose sapphires of varying color intensity (~ 0.23 ct.)
Hour and minute hands: manually engraved leaf-shaped hands in 18K white gold
Alligator leather with large square scales, hand-stitched, shiny rose, prong buckle in 18K white gold with 65 diamonds (~ 0.23 ct.) and 82 rose sapphires (~ 0.38 ct.)
Total precious stones
348 flawless Top Wesselton diamonds ( ~1.66 ct.)
354 rose sapphires of varying color intensity (~ 2.69 ct.)
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