Polish repeating coach clock with alarm and date Circa 1750

Silver quarter repeating coach clock by Johann Michael Gugenmos
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An important Polish silver pair cased quarter repeating coach clock with alarm and date, circa 1750. Full plate movement, chain/fusee, lavishly florally engraved barrel for alarm, 3 hammers, verge escapement, three armed brass balance. White enamel dial with Roman hours and Arabic minutes, special ring with Arabic numerals for the date indication, central date hand and decorative hands. Outer and inner case around the edge florally engraved and pierced, with rear bell. Movement signed.
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Diameter: 118 mm
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Weight: 1117 g
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Signed: Gugenmus Hger du Roy à Varsovie
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Johann Michael Gugenmos is also recorded as Gugenmoos, Gugenmaus, Gugenmos. He was was clockmaker to the court at the end of 17th/beginning of 18th century in Warsaw.
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Literature: “Meister der Uhrmacherkunst” (masters of watchmaking) by Juergen Abeler, 2nd edition, Wuppertal 2010, p. 199 and “Die Kutschenuhr” (The coach clock) by Lukas Stolberg, Munich 1993, p. 240.