The eight-day movement features a complete calendar and has a going train with an anchor escapement. The plates are interconnected by five pillars. The rack striking train fully strikes the hours on the large bell and strikes half hours on the small bell.
The clock is equipped with a twelve-melody musical train with 28 hammers on 14 bells that plays the underlisted melodies upon the hours and half hours.
1. Duytsche Mars 2. Foelie de Spanje
3. Mars v. Marlbourg 4. Pirelala
5. D’Vriesse Boer 6. Nieuwe Cottiljon
7. Studentemars 8. Mars van Dessou
9. Boeree 10. Kees Myn Vryer
11. Gekroonde wynvat 12. Contredans
The dial with gilt centre and silvered engraved ring displays the hours in Roman numerals and the minutes in Arabic numerals. The numeral ring has spandrels with gilt bronze openwork. Below the numeral XII is a seconds bit. Above the numeral VI is a date mark. Centrally placed within the lunette is a moon phase indicator within a painted scene of music-playing putti. Above this, in an arc aligned with the lunette, is a listing of the twelve melodies played. Two melodies can be chosen by means of an adjustable hand. The clock is signed on the numeral ring: Gerrit Marcus Amsterdam.
Gerrit Marcus was born in Amsterdam in 1710 and died after 1767. In 1730 he worked as a clockmaker on Oude Spiegelstraat, and he is noted as an important clockmaker in the 1767 register.
The entire front of the cabinet is executed in walnut root veneer, while the sides of the cabinet are executed in walnut trunk and root veneer. At the corners of the base are diagonally oriented knees upon arched feet. The central section incorporates a door and a richly ornamented cartouche-shaped lenticle.
The door providing access to the dial is flanked by two round pilasters with bronze capitals. Ornamental openwork carvings decorate the sides flanking the movement and the crown of the bonnet. The crown has a carved crest and is topped with three gilt wooden statues: Atlas, flanked by a winged bugler and Mercury.
Enrico Morpurgo, Nederlandse klokken- en horlogemakers vanaf 1300, 1970, p. 83