Vacheron Constantin 453-770, Main spring
- Vacheron Constantin genuine part, without factory packaging.
- Fits cal: 453, 454, 485, 495, 1007, 1008
- H: = 1.28 mm.
- F: = 0.12 mm.
- L: = 420 mm.
Versions:
- 453: sub second.
- 454: center seond.
- 485: sub second, calendar: day, date, month.
- 495: sub second, calendar: day, date, month, moon phase.
- 1007: sub second, stop device.
- 1008: center second, stop device.