Swiss stainless steel eight day going dress watch Circa 1950

Stainless steel lever watch with patented power reserve 
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Rare Swiss stainless steel open faced patented eight day going keyless dress watch, circa 1950. The rhodium plated 3/4 plate movement with a straight line lever escapement, Geneva striping decoration, 15 jewels, a large going barrel, cut bimetallic compensation balance, blued steel Breguet balance spring and an index regulator. Matte silver dial with applied blue Arabic hour numerals, an outer minute track, subsidiary seconds at 9 o’clock, power reserve indication at 6 and original blued steel heavy moon hands. The flat brushed case with a lancet shaped bow. Dial, case and movement signed.
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Diameter: 48 mm
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Signed: Jaeger-LeCoultre Swiss
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Reference No. 1370.