A mid 19th Century half quarter repeating lever by Arnold and Frodsham in a gold full hunter case decorated with heraldic devices. Keywind gilt bar movement with suspended going barrel. Plain cock with polished steel regulator, diamond endstone. Compensation balance with blue steel spiral hairspring. Club foot lever escapement, the teeth of the escape wheel of unusual form as used by Arnold and Dent. Very wide slot to the lever to accommodate the two gold pins on the roller. Slide quarter repeating on two polished steel gongs. Signed and numbered white enamel dial with subsidiary seconds, Roman numerals, blue steel hands. Substantial 18 carat full hunter case, the front cover with applied chased and engraved heavy cast gold crowns and the motto “Through”. On the back in similar heavy applied cast gold the motto is repeated below a heraldic shield flanked by a lion an unicorn. Unusual rotating swivel bow, wound and set through the plain gold cuvette.
An unusual combination for the escapement. The use of two pins spaced apart was thought to give the advantage of giving impulse to the balance closer to the line of the centres. See “John Arnold and Son” by Vaudrey Mercer, plate 202. The coronets on the case are for an Earl, a Baron and a Viscount with the crest and motto of Hamilton. The arms are those of Hamilton, Ears of Orkney. See “Burke's General Armoury”, page 446