Case: two-body, solid, polished, stepped bezel, case back with screws. Dial: Blue with applied white gold square markers and Roman numerals on a plain reserve, aperture for the date. Feuille white gold hands.Movimento: Cal. 1312, rhodium-plated, fausses cotes decoration,27 jewels, straight line lever escapement, monometallic balance adjusted for temperatures and 5 positions, shock-absorber, self-compensating flat balance spring.Dial, case and movement signed.Dim. 31 x 39 mm.Dial, case and movement in very good condition.