Reference IW3770-25 Grande Complication | A limited edition pink gold automatic minute repeating perpetual calendar chronograph wristwatch with moon phases, Circa 2008
IWC
Dial: anthracite Caliber: cal. 79091 automatic, 75 jewels Case: 18k pink gold, case back secured by six screws Case number: 3’414’718, No. 14/50 Closure: 18k pink gold IWC buckle Size: 42.2 mm diameter Signed: case, dial and movement Box: yes Papers: yes Accessories: IWC presentation box with outer packaging, Guarantee card dated December 2nd, 2008, Limited Edition Certificate, instructions books, The Grande Complication by IWC book, hang tag, and polishing cloth The IWC Reference IW3770-25 Grande Complication is an exceptionally intricate and imposing timepiece that represents the pinnacle of haute horology from the International Watch Company (IWC). As part of the legendary Da Vinci collection, this watch is revered for its masterful integration of complications within a robust yet elegant case. Powered by the IWC Caliber 79091, this self-winding movement features an automatic chronograph, a perpetual calendar, and a minute repeater, making it one of the most complex and sophisticated watches ever produced by the brand. The perpetual calendar automatically accounts for leap years, while the minute repeater chimes the time on demand with remarkable acoustic clarity. Aesthetically, the IW3770-25 Grande Complication embodies IWC's signature design language. The robust 42mm case—available in platinum, pink gold, or yellow gold—commands presence on the wrist while ensuring optimal legibility. The dial is thoughtfully arranged to present extensive information in a clear and balanced manner, featuring day, date, month, moon phase, and leap year indicators. With only a limited number produced each year, this timepiece is a true grail for serious collectors and a testament to IWC's expertise in crafting high-complication watches.