LEMANIA SPLIT-SECONDS COMPETITION CHRONOGRAPH, CIRCA 1940 Four body fillet metal chromed case, polished dome, chronograph start by pressing the crown and split function by the pusher at 11 o’clock.
White dial signed, painted Arabic hour numerals, minute track, outer 1/10th of second division, subsidiary dials for the seconds and 30-min register. Blued modernes hands, double chronographic hands.
Signed key-less movement, gilded caliber LWO 1130, n. 791365, column wheel system for the chronograph, brushed steel leverage, lever escapement with 36.000 beats per hour, cut compensated bimetallic balance with screws, Breguet hairspring, micrometer regulator. 
Diameter Ø: 65 mm
Note: working.