A.P. Walsh. An 18K gold openface keyless and keywound chronometer watch with power reserve

SIGNED A.P. WALSH, LONDON, NO. 1986, CASE STAMPED HW FOR HENRY WEBB AND WITH LONDON DATE LETTER FOR 1873/74

Details

A.P. Walsh. An 18K gold openface keyless and keywound chronometer watch with power reserve
Signed A.P. Walsh, London, No. 1986, case stamped HW for Henry Webb and with London date letter for 1873/74
Three quarter plate gilt-finished jewelled movement wound through the pendant or with a key, finely engraved balance cock and foot, chain fusée, Earnshaw-type spring detent escapement, bimetallic compensation balance with gold screws, blued steel helical spring with diamond endstone, free sprung regulator, gold cuvette, white enamel dial, Roman numerals, blued steel spade hands, two sunk subsidiary dials for power reserve and constant seconds, plain circular case, case and cuvette stamped with the casemaker's initials HW for Henry Webb and London date letter for 1873/74 and numbered, dial signed by maker, movement signed by maker and numbered
57 mm. diam.

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Lot Essay

Arthur Paul Walsh, born 1815, died 1893, Frith Street, Soho, was an eminent pocket chronometer maker reputed to have invented the duo-in-uno balance spring.

It is interesting that this invention was also claimed by John McLennan, another prominent chronometer maker (see lot 110 in this auction, Obituary published in Horological Journal, Vol. XXIX, January 1887, pp. 78-79).

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