pp_28-20
PP 28-20
PP 28-20
© Patek Philippe
PP TO 28-20
© Patek Philippe
Calibre PP 28-20/220, exploded view
© Patek Philippe
Calibre 28-20 REC is a hand-wound watch movement from Patek Philippe.
This tonneau-shaped calibre has 8 (10) days power reserve.
Variants
| Calibre | Dimensions (mm) | Jewels | Parts | Usage | Features |
|---|---|---|---|---|---|
| 28-20/220 | Ø 27, H ? | 29 | Gondolo 10 Day Power Reserve 5100 | 2 barrels, Gyromax® balance, Power reserve 10 days |
|
| TO 28-20 REC 10J PS IRM | Ø 27, H ? | 29 | Gondolo 10 Day Tourbillon 5101 | Tourbillon, 2 barrels, Gyromax® balance, Power reserve 10 days |
|
| 28-20 REC 8J PS IRM C J | Ø 27, H ? | 28 | 142 | Gondolo 5200 | Gyromax® balance, Spiromax® balance spring, Pulsomax® escapement, Power reserve 192 h (8 days) |
Description:
- Tonneau-shape
Functions:
- Hours, minutes
- Date, day
- Instantaneous calendar
Data:
- 28,800 A/h (28-20 REC 10J PS IRM: 21.600 A/h))
- 28×20 mm, H ?
Production period:
- ?-present
pp_28-20.txt · Last modified: 02.12.2022 20:38 by 127.0.0.1