Swiss split-seconds chronograph for sports timing Circa 1965

Stainless steel chronograph by Omega
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A fine and rare Swiss manual-winding stainless steel huge pocket watch with a 1/10th second split-second chronograph, circa 1965.
2/3 plate movement, lever escapement, Glucydur screw balance. Black dial, signed LONGINES, 1/10-second chronograph with split-seconds, two subsidiary dials, one for constant seconds and one for the 30-minute counter, Arabic numerals, original white hands. Stainless steel polished case. Dial, case and movement signed.
Accompanied by Bulletin de Marche dated 1965.
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Diameter: 65 mm
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Weight: 254 g
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Signed: Omega