Roger Dubuis Sympathie 18K White Gold Perpetual Calendar Double Retrograde RARE

(36045) Roger Dubuis S3756320 Sympathie double retrograde Perpetual Calendar, S37.5632.0, limited series of 28 pieces, 18k white gold on an alligator strap with a matching 18K white gold buckle, automatic Roger Dubuis Caliber RD5772 movement with Geneva seal, white dial with black Arabic numeral hour markers, unique retrograde day and date functions on either side of the dial, leap year and month indicators at 12 o'clock, moon-phas...