December 1, 2021 10:19 PM EST
The "semi-perpetual calendar" must be specifically mentioned, or given its official nickname, Super Chronomat 44 four-year calendar. This watch has day, date, month and moon phase indicators, which need to be adjusted every four years in a leap year. The calendar watch has a subtle ton-sur-ton dial, available in steel and red gold configurations, ceramic inserts, and red gold bezel basketball legends with a stainless steel case, the bezel is 18k red gold, with blue ceramic inserts, one-way ratchet, hour markers and Super-LumiNova® coated rider label numbers.