SILVER PERPETUAL CALENDAR OPEN FACE POCKET WATCH 49.00 mm case diameter, white dial, black Roman numerals with outer chapter ring calibrated for seconds, subdial for seconds at 6 o'clock, pusher set, stem wound nickel movement with exhibition crystal and outer chapter ring for date and days of the week, foliate engraved case back with applied rose gold cartouche with Swiss cross. Inner case back stamp: 16206. 64.30 dwt.