German repeater with quarter-hour/hour self strike Circa 1800

Niëllo silver repeater by Johan Georg Messy
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A decorative Southern German quarter repeating gentleman’s pocket watch with quarter-hour/hour self strike, circa 1800.
The niëllo silver case has a signed gold dome, a slide for silence, and on reverse mystic human creature and floral ornaments. The dial is enamel with radial Roman hours, Arabic minutes, and blued Louis XV hands. And the brass full plate movement is gilt and has two hammers / two gongs, two barrels, mirror-polished steel rack strike, three-arm steel ring balance, and an unusual fine adjusting device via kidney-shaped adjusting scale.
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Diameter: 65 mm
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Weight: 201 g
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Signed: J.G. Messy in Freyburg Fecit
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Johann Georg Messy, German watchmaker and mechanic
Joh. Georg Messy (Johann Georg) was born in Freiburg im Breisgau and was active around 1800 as a “watchmaker and mechanic”. He was probably born in 1781 and married Elisabeth Mayer in 1807.
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Perhaps Johann Georg was a descendant of Johann Baptist Messy, who was born on March 1, 1739, in Freiburg. He became a cooper, a soldier and moved to Amsterdam and later emigrated to Suriname where he became a plantation overseer. He came back wealthy in 1776. He had a large residential and guest house built in Herdern / Freiburg on the corner of Habsburger-Wölflinstrasse. He became an innkeeper in the “Tavern to America” ​​and even a police inspector. Johann Baptist Messy died in 1795 so Johann Georg was not a direct descendant.
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According to an advertisement in the Augsburg Ordinari Postzeitung from the state, learned historical and economic news from 1816, Joh. Georg Messy invented a perpetual motion clock. He also signed his watches with Jn. Georg Messy in Friborg.