German hour striking octagonal Renaissance clock Circa 1590

Extremely rare neck watch with hour-striking mechanism
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An extremely rare large gilt metal German octagonal Renaissance clock with striking mechanism and maker’s mark MB, probably referring Matthäus Buschmann who worked in Augsburg, Germany, circa 1580 – 1600.
The open faced octagonal case of this watch is pierced and has a bell and its silver enamelled dial with Roman hour numerals from one to twelve and Arabic ones from thirteen to twenty four has iron hands. The octagonal movement has a stackfreed, spoon balance and striking the hour.
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Dimensions: 75 x 48 mm
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Signed: MB
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Stackfreed
A stackfreed is a simple spring loaded cam mechanism used in some of the earliest antique spring driven clocks and watches to even out the force of the mainspring, to improve timekeeping accuracy.