The IWC Big Pilot Perpetual Calendar TOP GUN is unlike any other perpetual calendar you would come across. Common perpetual calendar manufacturers like Patek and Vacheron share nearly zero similarities with this one. At wide and 16mm thick, two traditional perps could probably fit inside this watch. Yet, the IWC manages a charm of its own! Find me on Instagram: Massive thanks to for the hands on of this piece. Do check them out! #watches #iwc -------------------------------------------------------------------------------------------------------------------- BUSINESS INQUIRIES Contact me via email at the channel About Page