Swiss stainless steel complicated pocket watch Circa 1965

Stainless steel watch with three complications
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A Large Swiss stainless steel keyless pocket watch made by Longines in Saint-Imier, circa 1965. Open faced, plain case with split seconds chronograph and a minute counter.
A screwed case back, silver dial with Arabic numerals, and a black outer minute counter. Three horological complications: 1/10 second chronograph, activated by the winding crown. Split seconds, activated by the round shaped push piece located on the case band at 11. Half instantaneous 30 minute counter, subsidiary dial at 12 o’clock. The movement has a lever escapement. Engraved on the case back: 12303262/7411-2/8350. Dial, case and movement are signed.
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Diameter: 66 mm
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Signed: Longines, Saint-Imier
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Accompanied by original protective green leather fitted box with neck strap,
(Damaged on the box) and Extract from the Archives.