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Shop all Roger Dubuis watches: http://bit.ly/2OzDOei This early Roger Dubuis Sympathie Perpetual Calendar S40 5739 has a diameter of 40mm diagonally and 37mm horizontally. It is powered by a Roger Dubuis RD57 automatic caliber with a perpetual calendar complication. The watch features both Geneva Hallmark finishing standards and chronometer certification by the French Besancon Observatory. A moonphase complication adds a poetic accent to the elaborate guilloche pattern of the dial. Please subscribe to our channel for the best luxury watch reviews on YouTube: https://www.youtube.com/WatchBoxReviews/?sub_confirmation=1 Visit our website at www.thewatchbox.com for the latest pre-owned luxury watch arrivals and industry-leading value in previously loved luxury timepieces.