Audemars Piguet Royal Oak Vintage B Serial
1978
Audemars Piguet Royal Oak Vintage. Reference 4100ST SERIE B
Self-winding mechanical movement, Audemars Piguet manufacture calibre 2123, frequency 28,800 vibrations/hour, 38-hour power reserve with 33 jewels.
Steel case 36 mm in diameter, steel bezel, steel bracelet and AP steel folding clasp. Black dial with Tapisserie motif, Royal Oak indexes and hands with luminescent coating. Date at 3 o'clock. Anti-reflective sapphire crystal and screw-down caseback.
Collector's watch in very nice condition from November 1978!!! with carrying case and Audemars Piguet register extract.
Watch guaranteed 2 years.
With its steel case and Tapisserie T21 dial, the 4100ST reinterprets the original codes of the 5402 model by adding a seconds hand. Audemars Piguet's press kit for the 1978 Basel Fair announced that this 35 mm model was designed "for small wrists".2123 Calibre was launched in 1977 to equip the Royal Oak III, reference 4100, whose 35 mm diameter required a smaller calibre than the 2120 (d: 28 mm, h: 3.05 mm). This new mechanism oscillates at a high frequency of 28,800 vph. It is both 2 mm smaller than its predecessor and 0.2 mm thicker, enabling it to offer a center second - a first for a Royal Oak watch.
Just under 9,000 were produced between 1977 and 1984, the most productive years being 1987-1981, with an annual average of around 1,800 movements.
- Other
- Central seconds
Luminous hands
Luminous indices
Screw-down crown - Box
- Steel
YES - Bracelet
- Steel
- Clasp
- Folding clas loop, hidden
- Glass
- Sapphire Glass
- Certificate
- NO
- Movement type
- Automatic
- Functions
- Date
- Sex
- Unisex
- Condition
- Good
- Year
- 1978
- Diameter
- 36
Specific References
- Our reference
- 33000202