A French gilt brass alarm desk clock with calendar, third quarter 19th century

9.5-cm enamel chapter ring with Roman numerals signed Grignon Meusnier breveté à Paris, Breguet hands and enamel alarm disc, skeletonized centre revealing the similarly signed countwheel bell striking skeletonized movement with visible duplex escapement, alarm on a bell, gilt brass case marked GM surmounted by an elaborate shaped handle, scroll base incorporating subsidiaries for day, date and month of the calendar work with connection to the movement, raised on scroll feet