The chronograph has always featured prominently in the vast range of complications in which Patek Philippe has demonstrated its virtuosity. For over 175 years, the manufacture has created a wealth of different models, many of which count among the timepieces most admired and sought after by connoisseurs and collectors.
Watch
Self-winding mechanical movement. 
Caliber : CH 28-520 IRM QA 24H.  
Flyback chronograph. 
Annual Calendar.
Dial : Ebony black opaline, 8 baguette diamond hour markers (~0.23 ct).
Case : Rose gold. 
Case diameter: 40.5 mm. 
Height: 13.53 mm.
Water resistant : 30 m. 
Sapphire crystal case back.
Gemsetting : Bezel set with 36 baguette diamonds (~3.48 ct). 
Fold-over clasp set with 22 baguette diamonds (~0.97 ct).
Strap : Alligator strap with square scales, hand-stitched, matte matte black. 
Fold-over clasp.
Chronograph with 60-minute and 12-hour mono-counter. 
Day/night indication. 
Power reserve indicator. 
Diameter: 33 mm. 
Thickness: 7.68 mm. 
Number of parts: 456. 
Bridges: 14. 
Jewels: 40. 
Power reserve: min. 45 hours - max. 55 hours. 
Winding rotor: 21K gold central rotor. 
Balance: Gyromax®. 
Vibrations/hour: 28 800 (4 Hz). 
Balance spring: Spiromax®. 
Hallmark: Patek Philippe Seal.