XXL Perpetual Calendar
18ct white gold Girard Perregaux Vintage 1945 XXL Perpetual Calendar Chronograph Ref 90270. Case diameter 36mm x 37mm x 14.9mm with sapphire crystal see through case back. Automatic GP movement calibre 3170, 44 jewels, 46-hour power reserve. Functions: Hour, minute, chronograph, 24-hour display, perpetual calendar, weekday, month, moon phase, leap year. Black dial with Arabic numeral hour markers, black croc strap with 18ct white gold folding clasp. The perpetual calendar mechanism enables the date display to take into account the different lengths of the months automatically, including leap years. It is a mechanism based on a so-called ‘twelve-cam’ (which completes one rotation every 12 months), and a wheel called the ‘forty-eight’ (which completes one rotation every forty-eight months, or four years) enabling the inclusion of February 29th, each leap year. Girard Perregaux Automatic watch winding Box and papers, certificate of authenticity and GP service papers from 2009.Our reference S13230.
Replacement cost £45,000