Early English single handed verge with alarm Circa 1695

An English single handed verge with alarm in silver pair cases circa 1695. Full plate fire gilt movement with Egyptian pillars. Fusee and chain with worm and wheel barrel setup between the plates. Wound through the pierced and engraved cock, small pierced and engraved foot. Plain steel balance, silver regulator disc. Short alarm train, pierced and engraved resting barrel, large blue steel stop work wheel. Double headed hammer striking on a bell in the case. Silver champlevé dial, the hand on the rotating center indicating the time, Roman numerals, blue steel alarm time hand. Inner case, a wideband pierced and engraved bordered by further engraving. Later long pendant and bow. Plain silver outer case.
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Diameter: 60 mm
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Signed: Soret London
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An early English alarm. Unlike repeating and clock watches an alarm only needs to sound when the watch is at rest rather than when worn. It would make sense to leave watch without the outer having wound both trains at night. The plain outer case could then protect the movement from dirt and dust during the day.