| A late 18th Century English chronometer movement by Arnold in a gilt desk clock with calendar. Full plate gilt keywind fusee movement. Harrison's maintaining power. Pierced and engraved cock with diamond endstone in a blue steel setting, large blue steel hairspring stud. Arnold "O
Z" type compensation balance with helical blue steel hairspring. Arnold type spring detent escapement, the detent in a slot in the plate. Screwed in jewelling, escape pivots with endstones. Full restored numbered white enamel dial with subsidiary seconds, Roman numerals, blue steel seconds hand, gold hands. Fitted in a purpose made gilt humpback case in the style of Thomas Cole. Manually set calendar below the dial under
a bevelled glass. Silvered cylinder at the left marked with the days of the week changed by a key to align with the date on the silvered rectangular plate. The sides and front of the case decoratively engraved. Plain gilt rear door hinged at its lower edge revealing a hinged frame retained by a latch on the cover to the movement. This is a bayonet fit and easily removed. The hands are set by releasing the latch and lowering the frame.
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