Rare German silver one-handed verge watch with alarm Circa 1690

Silver open faced alarm watch by J.L. Bommel
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A rare German silver open faced one-handed verge pocket watch with alarm, circa 1690. Gilt full plate movement, chain and fusee, one hammer, a rear bell, three-arm steel balance. Silver dial with Roman hours, a central gilt alarm disc and single hand. Florally engraved and pierced case. Movement signed.
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Diameter: 49 mm
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Weight: 149 g
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Signed: Johann Leonhard Bommel Nuremberg
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Johann Leonhard Bommel was a descendant of the watch and clock-making family Bommel who worked in Nuremberg between 1640 and 1750. He is recorded as a maker until around 1725 and was famous for the technical quality of his movements. In addition to pocket watches and carriage clocks, he produced large table clocks in late baroque-style cases. The German watch and clock museum in Furtwangen owns a carriage clock made by Bommel that features an alarm attachment and comes with a box.