Mathey Tissot, a moon phases calendar eighteen carat gold wristwatch Signed Mathey Tissot, réf. 1679, years 1960 Cal.730, manual winding, 17 rubis, gilted dial, black arabic number, gilted hands and blue steel hands, aperture for day and month in english, outer track for date, chronograph with 2 subsidiary dial with center second, width. 37 mm