Three-body, polished and brushed, screwed-down protected winding crown, unidirectional revolving bezel with 12 screws, case back with embossed logo, engraved minute graduation on the bezel, quarter-hour riders, luminous dot at 12 o'clock, sapphire crystal. Yellow dial with Arabic numerals, applied luminous steel baton and triangle indexes, outer minutes/seconds divisions, aperture for the date at 3. Luminous steel baton hands. 13''', rhodium-plated, 25 jewels, straightline lever escapement, monometallic balance, shock absorber, self-compensating fl at balance spring, hack mechanism