Fine and scarce Swiss 18K gold perpetual calendar minute repeater chronograph
by Haas, Geneva, circa 1890.
Fine white enamel dial with blued steel hands and indications for running
seconds, day, date, month and year (1-4), and aperture for phases of the
moon. Plain polish hunting case with chronograph button and repeater slide in the
band, Fine estimated 34 jewel movement.
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.
