English silver early three case verge pocket watch Circa 1750

A unusual pocket watch with date
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A rare, extremely early three case verge watch with date, made by Thomas Swetman, in London, England, circa 1750. This watch features three original cases crafted from silver, the outer protective case is covered with leather and both inner cases smooth and numbered. The silver dial features and outer minute and hour track with Arabic 5 minute- and Roman hour numerals, a date window in the center and early iron hands. The numbered movement is fitted with an early verge escapement with a straight cock foot, typical for the period around 1700 and particularly beautiful pillars.
The dial and movement are signed.
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Diameter: 70 mm
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Weight: 212 g
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Signed: Swetman, London 
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The item presented here is a very early, two handed watch, in sensational condition.
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Swetman
Thomas Swetman was an active watchmaker in London in the 18^th century. Although there is limited biographical information about him, various historical sources and auction items confirm his existence and work. He was active in London, primarily around the year 1750 and was known for the production of pocket watches and clock watches. A notable aspect of his work is that he manufactured watches specifically intended for the Japanese market during the Edo period. These watches often featured complications such as a date display or were adapted to the unique Japanese time system.