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Calendar, Date, Power reserve, Tourbillon
C. three-body, round, bezel with serrated edge, rounded band, transparent back with serrated edge securedby screws, curved sloped 250 ans lugs, anti-reflective sapphire crystals.Dial: black, 250 ans guilloché, applied white gold faceted baton indexes, outer minute track, day, date andmonth subsidiary dials and leap year aperture arranged in the upper half of the dial, aperture with seconds trackto view the revolving one-minute tourbillon, flanked by two power reserve sectors, the right 0-125, the left 125-250, applied Seal of Geneva. White gold éventail hands.Movement: Cal. 2250, 410 components, four barrels providing a 250-hour power reserve, stamped with the Sealof Geneva, rhodium plated, fausses-cotes decoration, 33 jewels, lateral lever escapement, one-minute tourbil-lonregulator, the carriage in the form of the Maltese Cross, free-sprung monometallic balance with a frequen-cyof 2,5Hz, (18,000A/h) shock-absorber, self-compensating Breguet balance-spring, index regulator, perpetualcalendar adjustment by three correctors on the side of the case.Dimensions: diameter 44 mm, thickness 14.6 mm.