Swiss minute tourbillon watch with power reserve Circa 1934

Silver and gold open faced one minute tourbillon watch by Breguet
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A very fine, rare and important Swiss silver and gold open faced keyless one minute tourbillon watch with Guillaume balance and power reserve, circa 1934. Sold on 30 April 1934. Victorin Piguet cal. 19”’ 1/2 plate nickel finished jewelled lever movement stamped with the Viper’s head, Guillaume balance, polished steel three armed tourbillon cage by Fritz Robert-Charrue. Engine turned silver dial, Roman numerals on blank chapter ring, gold Breguet hands, aperture for power reserve and constant seconds. Plain silver case, ribbed band, silver bezel with gold rim, silver back with gold rim and later glazed display centre, detached solid silver back with the inlaid initials P.A.C. to the reverse and engraved inscription N’avoir jamais à rougir d’une heure passée! (Never having to blush from an hour spent) and Etre Juste, Etre Vrai, Etre un homme (to be just, to be honest, to be a man) to the inside, gold hinges, crown and bow. Case numbered, dial and movement signed and numbered. Comes with a Besançon Bulletin d’Observatoire.
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Diameter: 51 mm
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Signed: Breguet Observatoire de Besançon Médaille d’Or