IWC Da Vinci IW375811

IWC Da Vinci Perpetual Calendar Chronograph Full set: an original wooden box,documents serviced 02/19

Basic Info Listing code : MHHHH3 Brand : IWC Model : Da Vinci Perpetual Calendar Reference number : IW375811 Movement : Automatic Case material : Rose gold Bracelet material : Alligator skin Year of production : 2008 (Approximation) Condition : Used (Good) Most Recent Servicing : February 26, 2019 Scope of delivery : Original box, original papers Gender : Men's watch/Unisex Location : Cyprus, Limassol Price : 14,799 [Negotiable Availability : Item is in stock Caliber Movement : Automatic Caliber/movement : 79261 Calibre Power reserve : 44 h Number of jewels : 39 Frequency : Frequency 28800.0 VPH (4.0 Hz) A/h Case Case material : Rose gold Case diameter : 41.5 mm Thickness : 16.4 mm Water resistance : 3 ATM Bezel material : Rose gold Crystal : Sapphire crystal Dial : Silver Dial numerals : Arabic numerals Bracelet/strap Bracelet material : Alligator skin Bracelet color : Brown Bracelet length : 180 mm (110 mm / 70 mm) Bracelet thickness : 2 mm Clasp : Fold clasp, hidden Clasp material : Rose Gold Buckle width : 20 mm FEATURES Small hacking seconds Sapphire glass, convex, antireflective coating on both sides Chronograph function with minutes and seconds A perpetual calendar with displays for the date, day, month, leap year, and perpetual moon phase. In the early 1980s, IWC’s head watchmaker Kurt Klaus set out on an engineering journey to translate the Gregorian calendar with its many irregularities into a mechanical program for a wristwatch. His ingenious perpetual calendar, which debuted in the Da Vinci Perpetual Calendar in 1985, comprises only about 80 parts and displays the date, day, month, and year in four digits and the moon phase. The innovative mechanical program automatically recognizes the different lengths of the months and even adds a leap day at the end of February every four years. The moon phase display is so precise that it will deviate from the actual phase of the moon by just one day after 577.5 years. All displays are perfectly synchronized and can be adjusted simply by turning the crown. Some models come with an additional century slide, so the watch can continue showing the date until 2499. The calendar only needs a slight adjustment in those centurial years that skip the leap year, which is the case in 2100, 2200, and 2300. Some calendar versions feature a double moon phase display, showing the moon phase on the northern and southern hemispheres. These watches were serviced by the manufacturer, IWC Schaffhausen, in March 2019 and are no longer in use.