Swiss stainless steel open faced keyless lever Circa 1970

Stainless steel lever watch by Omega
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A Swiss stainless steel open faced keyless lever watch, circa 1970. Keyless jewelled lever movement. White enamel dial with Breguet numerals and subsidiary seconds. Plain case, snap on back. Comes with associated steel chain. Case, dial and movement signed.
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Diameter: 48.5 mm
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Signed: Omega Swiss made