25659, Haute Joaillerie Royal Oak Perpetual Calendar Openworked
1988. Haute Joaillerie Royal Oak Perpetual Calendar Openworked 25659BA, N° 03, dial side. Perpetual Calendar: day, date, month, phase and age of the moon. Extra-thin (3.95 mm) and openworked selfwinding Calibre 2120/2800, movement 274089. Bracelet 344. 39 mm case C31040 in 18-carat yellow gold entirely set with brilliant-cut diamonds. Sold on December 15, 1988. Sold at auction by Phillips in Geneva on May 6, 2022, lot 72. Image © Phillips.
1988. Haute Joaillerie Royal Oak Perpetual Calendar Openworked 25659BA, N° 03, dial side. Perpetual Calendar: day, date, month, phase and age of the moon. Extra-thin (3.95 mm) and openworked selfwinding Calibre 2120/2800, movement 274089. Bracelet 344. 39 mm case C31040 in 18-carat yellow gold entirely set with brilliant-cut diamonds. Sold on December 15, 1988. Sold at auction by Phillips in Geneva on May 6, 2022, lot 72. Image © Phillips.
1988. Haute Joaillerie Royal Oak Perpetual Calendar Openworked 25659BA, N° 03, caseback side. Perpetual Calendar: day, date, month, phase and age of the moon. Extra-thin (3.95 mm) and openworked selfwinding Calibre 2120/2800, movement 274089. Bracelet 344. 39 mm case C31040 in 18-carat yellow gold entirely set with brilliant-cut diamonds. Sold on December 15, 1988. Sold at auction by Phillips in Geneva on May 6, 2022, lot 72. Image © Phillips.
Circa 1988. Technical data for the case of the Haute Joaillerie Royal Oak Perpetual Calendar 25659BA. Audemars Piguet Archives.
Circa 1988. Identification image of the Haute Joaillerie Royal Oak Perpetual Calendar 25659BA. Audemars Piguet Archives.
1988. Royal Oak Perpetual Calendar Openworked Models 25636PT and 25659BA. A promotional leaflet juxtaposes two Royal Oak Perpetual Calendar Openworked models: the first one is in platinum, while the second one is in fully gemset yellow gold. Audemars Piguet Archives.
The gemsetting of this jewellery variation of Model 25636 makes it highly recognisable. The case middle, the bezel and the links of the tapering bracelet are all entirely set with brilliant-cut diamonds. The bezel, including its curved bevelled facets, is covered with three rows of 168 diamonds in total. 12 diamonds, set on small gold circles glued to the transparent dial’s sapphire crystal, function as hour-markers.
Sales from 1988 to 1995: a total of 4 units, including 3 in yellow gold, the first of which was sold in 1988 and the two others in 1989. There is only one documented unit in platinum (PT) sold in 1995.
Derived from Model 25636 (1986).
The gemsetting of this jewellery variation of Model 25636 makes it highly recognisable. The case middle, the bezel and the links of the tapering bracelet are all entirely set with brilliant-cut diamonds. The bezel, including its curved bevelled facets, is covered with three rows of 168 diamonds in total. 12 diamonds, set on small gold circles glued to the transparent dial’s sapphire crystal, function as hour-markers.
Sales from 1988 to 1995: a total of 4 units, including 3 in yellow gold, the first of which was sold in 1988 and the two others in 1989. There is only one documented unit in platinum (PT) sold in 1995.
Derived from Model 25636 (1986).
