Eight-Day Duration Marine Chronometer, Aldred & Son

Circa 1880, brass movement, polished, decorated, molded pillars, chain/fusee, Earnshaw-type spring detent escapement on a platform, Poole's auxiliary compensation bimetallic chronometer balance with 4 screws and 2 weights, freesprung blued helical balance spring.
Silvered dial, signed Aldred & Son, Gt Yarmouth, numbered 2775; inlaid radial Roman hours, large auxiliary seconds, auxiliary 8-days power reserve indicator, spade gold hands.
Mahogany case, brass inlays, applied bone shield indicating Aldred & Son, Gt Yarmouth, 2775, outer handles, three body with lid and glass, brass gimbals and bowl.
Original ratchet-winding key.
Together with its repair rate certificate by the Thomas Mercer workshop, dated July, 6, 1982.