C. two-body, brushed, screwed-down case back, hooded lugs, outer 1/5th second scale on a black revolving bezel. D. black with tritium-coated indexes, auxiliary dials for the seconds and the 30 minutes registers, aperture for the date. "Bâton" tritium-coated white hands. M. Cal. 15, copper-colored, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring.Dial, case and movement signed.Dim. 42 x 53 mm. Approx. overall length 240 mm.