25654BA
Royal Oak 25654 — 25654BA
1987–1998
More than half of production; two catalogued looks, below.
430 sold 1987–1998.
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 25654
Reference overview →| Variant | Production |
|---|---|
| 25654ST | 1987–1998 |
| 25654ST · Mark 1 dial | Undated |
| 25654ST · Mark 2 dial | Undated |
| 25654ST · Mother-of-pearl dial | c. 1989 |
Case & movement
- Reference
- 25654
- Production
- 1987–1998
- 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.