Cal.7922, brass plated 25 jewel movement, matte black dial with white Arabic numerals, quarter block and triangle markers, luminous baton hands, subsidiary dials for running seconds, 30 minute and 12 hour registers, apertures for day and date, satin finish water-resistant type case with screw-down reverse and crown, on IWC leather strap with steel IWC buckle, case, dial and movement signed diameter 39mm, depth 13mm.