First released in 1969, the IWC Da Vinci began life as an integral part of IWC’s attempt to maintain relevance in the rapidly evolving world of horology following the launch of the world’s first quartz timepiece, Seiko’s Astron model. With its integrated bracelet and thin hexagonal-shaped case, it also foreshadowed the future of luxury watchmaking whereby the AP Royal Oak, Patek Philippe Nautilus, and Vacheron Constantin 222 would become intensely popular. However, the Da Vinci quickly evolved and became IWC’s medium to demonstrate their highest level of watchmaking excellence, a vehicle to showcase their innovation. As such, in 1985 IWC decided to challenge the quartz movement’s dominance and release a movement that flew in the face of what was ‘in’ and it was Kurt Klaus’ ingenious perpetual calendar movement, the IWC cal. 79261 based on the iconic Valjoux cal. 7750 chronograph movement. With that movement in hand, IWC wanted to create a special watch for their very special movement, and so they created the IWC Da Vinci Perpetual Calendar Chronograph ref. IW3750 and launched it in Baselworld 1985.

Watch is in very good overall condition. There are moderate signs of wear on the case, with some scratches and marks visible along the surfaces, most notably on the polished bezel and flexible lugs. The original dial is excellent with little signs of aging or wear. Bracelet has 24 links total, and fits an approx 7 1/2" wrist. There is light to moderate stretch in the band. Please note that while the watch is keeping time and the chronograph starts, stops and resets properly, the perpetual calendar mechanism has not bee tested. Additionally, the year indicator is on the year 2108 and will need to be manually reset by a competent watchmaker. This is not something that the user can fix themselves.

A mechanical marvel that showcases IWC's technical prowess, the IW3750 is perhaps still one of IWC's most impressive timepieces. With its perpetual calendar function combined with its chronograph, the IW3750 provides its wearer with true watchmaking delight that is only then made all the better with its unique construction that exemplifies traditional aesthetics.