Cal.2126, rhodium plated 51 jewel movement adjusted to heat, cold, isochronism and five positions with self-compensating flat hairspring and 21k gold lined rotor, silvered dial with applied gilt block markers, baton hands, subsidiary dials for running seconds, 30 minute and 12 hour registers, date aperture under magnifying lens, stainless steel case with signed gold bezel on fitted stainless steel and gold tapered bracelet with concealed double folding buckle, case, dial and movement signed diameter 40mm.