25554BA
Royal Oak 25554 — 25554BA
1984–1992
The catalogue version from July 1984; the only 25554 delivered in 1984 (December) was gold, no. 17. Opaline gold dials are documented.
About 223 delivered: 1 (1984), 101 (1985), 103 (1986), 16 (1987), 1 (1989), 1 (1992).
No verified image of this watch yet
Identifying details
- Perpetual calendar
Calendar that accounts for month lengths and leap years.
- Octagonal bezel
Eight-sided bezel around a round dial opening.
- Moon phase
Variants of 25554
Reference overview →| Variant | Production |
|---|---|
| 25554ST (Italian series) | 1985–1990 |
| 25554BACurrent | 1984–1992 |
| 25554PT | 1986 |
Case & movement
- Reference
- 25554
- Production
- 1984–1992
- Case material
- 18k yellow gold
- Case diameter
- 39 mm
- Movement
- Automatic
- Date
- Yes
- Caliber
- Audemars Piguet 2120/2800
Dial, bezel & hands
Unknown attributes are left out rather than guessed.
Movement
Audemars Piguet 2120/2800
Perpetual calendar (day, date, month, moon phase, no leap-year display) formed by the 2120 base and the 2800 under-dial module made by Dubois Dépraz; the thinnest automatic perpetual calendar of its time. First used in model 5548 (1978), in the Royal Oak from 1984. An openworked 2120/2800SQ followed in 1982.