C. Two-body, polished and brushed, case back with 4 screws, triangular and central lugs, polished rounded bezel, sapphire crystal. D. Satiné silver with applied white gold baton indexes, mother of pearl subsidiary dials for the days of the month, of the week, the months and the leap year, graduation for the age of the moon and aperture for the moon phases at 6. White gold epee hands. M. Cal. 8840, gilt brass, fausses cotes decoration, 25 jewels, straight line lever escapement, monometallic balance, shock absorber, self-compensating flat balance spring, micrometer regulator. Dial, case and movement signed. Diam. 38 mm. Thickness: 11 mm.