18 carat white gold case (43 mm) equipped with a Jaquet Droz 5863, self-winding mechanical movement with double barrel and 22-carat white gold oscillating weight and 68-hour power reserve. Black ‘grand feu’ enamelled dial with perpetual calendar indications: centred hours and minutes, small seconds at 6 o’clock, pointer-type retrograde date and day display, pointer-type month display and leap-year disc. Setting required once every 100 years.
www.jaquet-droz.com
Source: Europa Star April-May 2007 Magazine Issue