ChronoRolex
Daytona
★★★★★
40mm·Auto
Patek Philippe
Chronograph Watche1941| Reference | 1518 |
|---|---|
| Year | 1941 |
| Case Diameter | 35mm |
| Water Resistance | 30m |
| Movement | Manual |
| Caliber | 13-130 Q |
| Case Material | 18k yellow gold |
| Bezel | 18k yellow gold |
| Crystal | Acrylic |
| COSC | No |
The Reference 1518 was the first perpetual calendar chronograph wristwatch in serial production, launched by Patek Philippe in 1941. Manual-wind Valjoux-based caliber with Patek-finished perpetual calendar module. Only 281 examples were produced over fourteen years; one of the most consequential watches in horological history.