IWC Portugieser Perpetual Calendar (IW502213) self - winding automatic watch, features a 42.3mm 18k rose gold case surrounding a silver dial on a brown alligator strap with an 18k rose gold deployant buckle. Functions include hours, minutes, small seconds, day, date, month, moon phase, perpetual calendar, power reserve indicator and leap year indicator. This watch has been serviced and does not come with box or papers.