40mm platinum case approximately 11mm thick with a 48.5mm lug-to-lug, solid caseback featuring a hidden articulated latch at the 2 o'\''clock position for month and leap year correction, white gold dial with a soft matte silvered finish, outer Arabic numeral track and minute scale, and a central four-leaf clover aperture layout housing day and month windows at 12, a large date aperture at 6, a retrograde-style power reserve indicator at 9 scaled to 120 hours, and a leap year pointer integrated into the central hand stack, blued steel hands, signed "F.P. Journe Invenit et Fecit", powered by the automatic Caliber 1300.3 with mainplate, bridges, and off-center guilloché rotor machined from solid 18k rose gold and hand-finished with traditional anglage, functions including hours, minutes, day, date, month, leap year, and power reserve, approximately 160 hours of running autonomy with a guaranteed chronometric window of 120 hours, fitted on a dark green alligator leather strap with tang buckle.