IWC, YELLOW GOLD PERPETUAL CALENDAR SKELETONIZED OPENFACE POCKET WATCH, REF. 5501

IWC, YELLOW GOLD PERPETUAL CALENDAR SKELETONIZED OPENFACE POCKET WATCH, REF. 5501
CIRCA: 1980
CASE MATERIAL: Yellow gold
CASE DIAMETER: 55 mm.
DIAL: Skeletonized
MOVEMENT: Manual, keyless
FUNCTIONS: Perpetual calendar
WITH: IWC Certificate dated 24 April 1980, product literature, key and a wooden presentation box