Patek Philippe Nautilus Perpetual Calendar 2025 1g1. In 2018, patek philippe took the collecting world by storm with the launch of the instantly legendary reference 5740. Rumours of a nautilus with a perpetual calendar were rampant just prior to the start of baselworld.

Launched in 2018, as the most complicated nautilus reference to date, the nautilus perpetual calendar ref. 5740 features the shocking thin caliber 240 q movement, one of patek’s most beautiful movements ever made.