The Portugieser Annual Calendar is available with an 18-carat 5N gold case and a silver-plated dial. Located at “12 o’clock” on the dial, the annual calendar shows the month, date and day in three separate, semicircular windows. Its advance mechanism automatically takes the length of individual months into account and requires manual correction via the crown once a year at the end of February. The rare combination of an annual calendar and 7-day calibre makes this complication from the House of IWC even more fascinating for watch connoisseurs. The arched-edge sapphire glass makes the case look slimmer and underscores the watch’s classic elegance. The curved strap horns ensure greater comfort even on a slimmer wrist. On the reverse side, the see-through sapphire-glass back provides an unimpeded view of the exquisite new IWC-manufactured 52850 calibre. Solid 18kt rose gold case with brushed finished edges & polished finished bezel & lugs. Dial: Silver main dial. Silver sub-dials with very fine concentric circular texture pattern. Applied polished rose gold toned Arabic Numeral & Index hour markers. Fine black printed minute track. Polished rose gold toned hands. Small-seconds sub-dial located at the 9 o’clock position, Power reserve indicator sub-dial located at the 3 o’clock position. Annual Calendar Complication: The Annual Calendar complication will accurately account for odd & even numbers of days in each month with the exception of the 29th day of February in a leap year. The date will require a manual adjustment once every year, at the end of February. Features the Month, Date & Day. Presented on the dial in a neat curved 3-window display beneath the 12 o’clock position. IWC caliber 52850, beats at 28,800 vph, contains 36 Jewels & has an impressive 7 day Power Reserve.
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