RD821J movement
The RD821J calibre, a latest generation self-winding mechanical movement serving to display the day of the week and the month in two side-by-side apertures, along with the date, the moon phase and the leap year.
Characteristics
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Additional detail
RD821J perpetual calendar movement, 380 parts, 1,250 hours of manufacturing, including 380 hours devoted to the Hallmark of Geneva.
| Reference | RD821J |
| Parts | 364 pieces |
| Thickness | 5.28 mm |
| Size | 12 1/2''' |
| Frequency | 4.0 Hz |
| Power | 48.0 hr |
| Jewels | 33 |
La Monégasque
Perpetual calendarRDDBMG0006
- La Monégasque
Perpetual calendar
RDDBMG0006
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Roger Dubuis Perpetual Calendar RD821J 3D Animation