4100BC
Royal Oak III 4100 — 4100BC
1981–1986
White gold, launched in 1981 with the gem-set 4153BC and never catalogued or photographed for identification.
41 sold: 36 (1981), 2 (1982), 2 (1983), 1 (1986).
No verified image of this watch yet
Identifying details
No named details recorded yet.
Variants of 4100
Reference overview →| Variant | Production |
|---|---|
| 4100ST | 1977–c. 1987 |
| 4100SA | 1977–c. 2002 |
| 4100BA | 1977–c. 1988 |
| 4100BCCurrent | 1981–1986 |
Case & movement
- Reference
- 4100
- Production
- 1981–1986
- Case material
- 18k white gold
- Case diameter
- 35 mm
- Water resistance
- 50 m
- Movement
- Automatic
- Date
- Yes
- Caliber
- Audemars Piguet 2123
Dial, bezel & hands
Unknown attributes are left out rather than guessed.
Movement
Audemars Piguet 2123
26 mm automatic with centre seconds and date on a LeCoultre ébauche (900), made for the 35 mm Royal Oak 4100 – the first Royal Oak with a seconds hand. Revised in 1979 as the 2123/1; just under 9,000 made 1977–1984.
Automatic · Introduced 1977 · 28,800 vph · 33 jewels · Ø 26 mm · 3.25 mm thick