Swiss stainless steel Staybrite lever with 24 hour dial Circa 1935

Stainless steel open faced keyless lever by Gübelin
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A fine, large, elegant and thin Swiss stainless steel Staybrite open faced keyless lever pocket watch with black 24 hour dial, made in the 1930s. Rhodium plated movement, 16 jewels, straight line lever escapement, cut bimetallic compensation balance with two adjustments, blued steel Breguet balance spring, sprung micrometre regulator. Black enamel dial with applied steel baton indexes, outer painted silver minute track and inner 24 hour numerals and original steel épée hands. Polished case, inclined bezel, stepped band, inverted U shaped bow, flat topped winding crown.
Dial signed, movement signed and numbered, case numbered.
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Diameter: 56 mm
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Signed: E. Gübelin Swiss