Blancpain · 6654
6654.4
A Villeret complete-calendar automatic with moon phase, a silicon balance spring and a three-day reserve.
At a glance
- Type
- Automatic mechanical
- Display / complication
- Complete calendar
- Architecture
- Automatic winding, secured calendar mechanism, day, date, month and moon phase
- Timebase
- 28,800 vph / 4 Hz
- Power reserve
- 72 h
- Movement height
- 5.32 mm
- Jewels
- 28
Reference sources reviewed 7 November 2026. Published specifications, not independent measurements. Versions and complete-watch specifications can differ; fields without a verified figure are omitted or identified.
Find it in a watch
Blancpain Villeret Quantième Complet 6654 1504 55B
An example from the linked references. Check the exact model and production generation.
What distinguishes it
Look beyond the reference.
A secured movement protects the calendar during adjustment; it does not make the calendar perpetual. As a complete calendar, it still needs correction after months shorter than 31 days.
For the enthusiast
These figures are for the current 6654.4 listed by Blancpain, with 321 components. Earlier 6654 and Bathyscaphe 6654.P documents use different suffixes and dimensions, so identify the precise version before comparing them.