C. Three-body, sprung for shock absorption, brushed, faceted bezel, black carbon fiber sides with glazed apertures to view the springs, secured by four special titanium bolts, crown with patented pull-out crown protector, transparent back with 4 screws, sapphire crystals. D. Two-tone silver with polished skeleton chapter ring, Arabic numerals, outer black minute and seconds divisions with every 5-minute radial silver Arabic numerals, subsidiary guilloche dials for the seconds, 30-minute and 12-hour registers, date aperture. Polished and frosted luminous steel baton hands, red chronograph and second hands. M. Cal. 2894-2, rhodium-plated, 37 jewels, straight-line lever escapement, Incaflex balance, self-compensating flat balance spring, shock absorber, micrometer regulator, black rotor. Dial, case and movement signed. Dim. 52 x 43 mm. Thickness 15 mm.