Audemars Piguet Royal Oak Perpetual Calendar 25636BA.OO.0944BA.01

Audemars Piguet

Manufacturer Audemars Piguet Year 1987 Reference No 25636BA.OO.0944BA.01 Movement No 286’843 Case No C32’026, No. 19 Model Name Royal Oak Perpetual Calendar Openworked Material 18K yellow gold Calibre Automatic, cal. 2120/2800 SQ, 36 jewels Bracelet/Strap 18K yellow gold Audemars Piguet bracelet, max length 190mm Clasp/Buckle 18K yellow gold Audemars Piguet deployant clasp Dimensions 39mm diameter Signed Case, dial, movement, bracelet and clasp signed Accessories Delivered with Audemars Piguet digital Extract from the Archives confirming the register date of the present timepiece on 13 August 1987. Good To Know: - Very early perpetual calendar reference without leap year indication - Numbered 19, only 156 pieces were made in yellow gold - First Royal Oak to feature a sapphire caseback In 1984, twelve years after the groundbreaking launch of the Royal Oak, Audemars Piguet boldly responded to the challenges posed by the quartz crisis by introducing the Royal Oak Perpetual Calendar. ... After nearly 40 years, its condition is remarkably preserved, with a pleasing layer of patina developed on the case and bracelet, suggesting it has been stored safely for an extended period.