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The F.P. Journe Quantième Perpétuel Reference QP represents François-Paul Journe’s distinctive interpretation of perpetual calendar combining exceptional readability through large instantaneous-jump apertures with legendary Octa Calibre 1300.3 automatic movement delivering 120-hour power reserve. Introduced 2013 replacing Octa Calendrier in F.P. Journe’s annual production approximately 900 timepieces, this perpetual calendar demonstrates independent watchmaker’s philosophy creating highly legible displays with exceptional user-friendliness unusual in complex calendar watches. The Quantième Perpétuel displays exact date automatically accounting for variable month lengths (28, 29, 30, 31 days) and leap-year cycle indicated by central hand showing years 1, 2, 3 in black and L (Leap) in red, movement possessing mechanical memory spanning 1,461 days. Unlike traditional perpetual calendars requiring careful manipulation and special tools, F.P. Journe’s design enables all corrections via three-position crown except rapid month correction by protected corrector lever beneath lug at 1 o’clock. Instantaneous jump system accumulates energy releasing instantaneously when date day or month changes ensuring crisp transitions. The 40mm platinum case houses blue guilloché clous de Paris silver dial with applied 18ct white gold numerals creating refined aesthetic substantially improved from original 2013 design. Available exclusively F.P. Journe Boutiques and Espaces, movement entirely manufactures 18ct rose gold demonstrating commitment to precious metals bearing motto “Invenit et Fecit” (He invented it and made it).