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Patek Philippe reinterprets the perpetual calendar with retrograde date hand in a new white gold version exuding an original, contemporary style, featuring a dial in grey metallized sapphire crystal revealing the watch's mechanical heart.
The retrograde date as well as the aperture frames of the day (at 9 o'clock), leap-year cycle (at 12 o'clock) month (at 3 o'clock) and moon phases (at 6 o'clock) are underlined by a grey electroplated outline.
The bezel and the caseback are enhanced by the famous hobnail pattern, one of the finest emblems of Patek Philippe style.
| Brand | Patek Philippe | 
| Collection | Grand Complications | 
| Model Number | 6159G-001 | 
| Case Diameter | Diameter: 39.5 mm. Thickness: 11.49 mm. | 
| Case Material | 
18ct White gold | 
| Strap Material | 
 Composite material, fabric pattern, black. White gold patented triple-blade fold-over clasp. 
 | 
| Dial | 
 
Sapphire crystal with grey metallization and black-gradient rim, white gold applied faceted baton-style hour markers with white luminescent coating.
 
 | 
| Warranty | 5 years | 
| Water Resistance | 30m | 
| Movement | 
 Self-winding mechanical movement. Calibre 26‑330 S QR. Perpetual calendar with retrograde date hand. Day, month and leap year in apertures. Moon phases. Sweep seconds. 
 | 
| Gem set | No | 
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