Swiss watch with three horological complications Circa 1926

Silver split-seconds chronograph
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An attractive Swiss silver pocket watch with split-seconds open faced chronograph, circa 1926. Gilded brass movement with going barrel, straight-line lever escapement, monometallic balance with gold poising screws and self-compensating hairspring with terminal curve, index regulator with micrometric screw.
Silver (00.900), open faced, keyless-winding, round-shaped cased pocket watch, subsidiary seconds at 6 and three horological complications: 1/5 second chronograph, activated by the round push-piece located on the winding-crown, Instantaneous 30-minute recorder, subsidiary dial at 12 o’clock, Split-seconds, activated by the rectangular push-piece located on the case band at 11 o’clock.
White enamel dial with Arabic numerals for the hours and for the minutes, subsidiary dials for seconds and 30-minute counter, red minutes and seconds. It has a 2/3 plate movement and a screw compensation balance.
Signed dial, case and movement.
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Diameter: 52 mm
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Signed: Longines