New gents IWC Perpetual Calendar in 18k Rose Gold Ref# IW3972-04. On original strap with rose gold deployant buckle. sapphire display caseback. Case dimensions; 46 mm x 16 mm. Self-winding movement with 68-hour power reserve. Perpetual calendar, with date and month, and leap year features, Chronograph with 60 minute and 12 Hour counters, sub-seconds, Blue sunburst dial with applied gold Arabic numerals. Large appertures with double digital date and month displays, mono counter for 12Hr and 60 minute chronograph functions, sub-seconds register with leap year indicator. Box and papers.