Rare French single handed Souscription cylinder watch Circa 1805

Gold pocket watch with key and gold chain by Breguet et Fils
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A rare French gold ruby cylinder single handed Souscription watch, complete with a key and gold chain, circa 1805. The watch features a movement with a gilded ruby cylinder escapement, a plain three arm balance, and parachute suspension. It is signed and numbered Breguet No. 1666. The dial is gold and engine turned, with a satin finished chapter ring that displays black Roman hour numerals and inner five minute divisions. It is signed Breguet et Fils in a banner at the bottom and has a single blued steel moonhand.
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The case is gold, also engine turned, with a reeded design by Tavernier. The engravings radiate from a central cartouche featuring a ducal coronet. Inside, it is numbered 2296 and 1614, with indistinct gold marks. The gold cuvette is signed Breguet and numbered 1666, secured by a single blued steel screw. Included is a short gold chain and a male/female winding key. The watch comes with a Breguet certificate dated January 24, 2020.
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This Montre Médaillon watch was sold to General Junot on February 20, 1805, for 1,200 francs.
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Diameter: 42 mm
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Signed: Breguet et Fils
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The watch movement is not operational. There is a scratch between the 11 and 12 markers, along with abrasions on the engine turning. The cuvette has a shallow dent, and the signature shows some rubbing. Small nicks are present on the case band and the reeding of the case. Service marks are visible inside the case, and the gold marks are worn.
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Abraham Louis Breguet introduced the Souscription Watch series to help revive his business following the French Revolution. Clients would initially pay a quarter of the 600 Livres cost upon ordering, covering material expenses, and then pay the remaining balance upon delivery. The first watch in this series was initiated in 1794 and delivered in 1796.