Three-body, polished, stepped bezel, screw-down transparent case back, crown and chronograph button, sapphire crystal. D. Black with painted luminous Arabic numerals, subsidiary dials for the 12-hour and 30-minute registers, aperture for the double-digit date, outer minute/seconds division with every five minutes Arabic numerals. Luminous steel épée hands. M. Cal. F185, rhodium-plated, fausses cotes decoration, 37 jewels, straight-line lever escapement, monometallic balance adjusted to 5 positions, shock absorber, self-compensating flat balance spring, 18K white gold rotor. Dial, case and movement signed. Diam. 40 mm. Thickness 14.5 mm. Approx overall length 170 mm.