Royal Oak Perpetual Calendar Skeleton
An extremely attractive and very rare open-worked stainless-steel perpetual calendar wristwatch of the famous Swiss watch brand Audemars Piguet, founded in 1875. Reference launched most probably in 1996 or 1997, purchase date: 2004. The case in stainless steel , diameter 39mm , thickness 9.3mm, transparent sapphire dial (a so-called ‘skeleton dial’) with leaf-shaped blackened gold hour and minute hands, sapphire caseback. Ultra-thin caliber 2120/2802, self-winding, partially skeletonized and engraved, including self-winding rotor with 21k yellow gold inertia segment, power reserve up to 40 hours. Functions – indication of time in hours and minutes, perpetual calendar with indicators of date, day of the week, month, leap year and moon phase. Royal Oak stainless steel bracelet, Audemars Piguet ‘AP’ stainless steel double folding clasp.
