Pre-owned, excellent condition Audemars Piguet Royal Oak reference 4100BA 18k Yellow Gold unisex wristwatch. Gold dial, applied Gold baton hour markers, date display at 3 o'clock, an 18k Yellow Gold 35mm case, classic Royal Oak 8-point screw down bezel, winder, bracelet and clasp wtih AP marking, sapphire crystal glass and automatic movement. Circa 1980's. The model 4100BA was introduced in 1978. This rare example is marked "No. 1" on the caseback.

This watch comes with our Watch Collectors Certificate of Authenticity, Box & 24 Months Warranty.

This watch has been checked against technical records to guarantee authenticity and clean history.