Fine Swiss 18K gold perpetual calendar minute repeater circa 1890.
Fine white enamel dial with indications for day, date, month year and moon phases.
Engine turned case with virtually no wear. Fine estimated 34 jewel nickel movement with
frosted wolf tooth winding wheels.
Unlike simple calendar watches, this mechanism "knows" the number of
days in each month and also accounts for leap year. When activated,
this watch chimes the time using different chime tones to designate
the hours, quarter hours and minutes with loud clear tones.