Complexity made simple: this is the philosophy behind the H. Moser & Cie. perpetual calendar, created in 2005 and considered by many to be the easiest on the market to read and set, as it can be adjusted both forwards and backwards at any time of the day. In 2015, H. Moser & Cie. unveiled the Endeavour Perpetual Calendar Funky Blue, which contributed to the brand's revival while establishing its new aesthetic codes – a bold blend of the traditional and modern. In 2022, H. Moser & Cie. is launching an updated version of the Endeavour Perpetual Calendar Funky Blue, measuring 42 mm and featuring the brand's logo in transparent lacquer. To mark this event, and to aid those who may still wonder how their perpetual calendar works, H. Moser & Cie. is creating a very special commemorative limited edition which showcases the ingenious technical characteristics of the Endeavour Perpetual Calendar, transforming its normally minimalist dial into a "cheat sheet".