BOVET 1822 RÉCITAL 20 ASTÉRIUM (2023). White Gold and Red Gold case, 46mm diameter, 18.3mm thickness, leather strap with pin buckle, water resistance up to 30 meters. Manual-winding mechanical movement with a 240-hour power reserve. Functions include hours, minutes, seconds, date, day, month, power reserve indicator, retrograde minutes, tourbillon, equation of time, and a special escapement. Annual calendar tracking summer and winter equinox. Reference: R20N005/1/PU. Launched in October 2022, part of the Dimier collection, limited to 1 piece. Priced at 532,432 CHF.  This watch is the winner of the Calendar & Astronomy prize at the 2023 GPHG