The Artelier Calibre 113 is the maker’s fourth in-house developed movement, since first launching the calibre 110 in 2014. The calibre 113 (along with the calibre 111 and calibre 112) is based on the calibre 110, but features a new “business calendar” function that includes the day, date, week, and month of the year. It’s basically a complete calendar, but with the week indicator instead of the more often seen moonphase.