CASE: Three-body, polished and brushed, screwed-down case back and crown, steel bezel graduated in 24 hours, sapphire crystal with Cyclops lens. DIAL : White with luminous round, baton and triangular indexes, outer minutes/seconds divisions, aperture for the date. Luminous black skeleton hands, 24 hour second time-zone red arrow hand. MOVEMENT: Cal.3185, rhodium-plated, oeil-de-perdrix decoration, 31 jewels- straight line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock absorber, self-compensating Breguet balance spring, hack mechanism. Dial, case and movement signed, in very good condition DIAM: 39 mm THICKNESS: 12 mm