Good Nicole Nielsen movement with non-magnetic escapement, circa 1860.
Three-quarter plate, pillar-less going-barrel movement with Nicole's instantly recognisable keyless work (hunter set), jewelled to the 3rd with cap jewels on balance and escape, the frame stamped with Nicole's serial numbers 3518 and 3581 as well as Dent's number 23367. Non-magnetic single-roller lever escapement, the roller, lever and pallet frame of gold (not tested). Compensation balance, white metal (Palladium?) spiral balance-spring. Signed enamel dial with seconds at 9. 41.5 mm diameter, 7 mm deep, not including centre arbor.
This movement was sold the firm of M F Dent which, along with its sister company E J Dent, were two of the most important London watch, clock and chronometer makers/retailers of the second half of the 19th century. It is often difficult to identify which of the two Dent firms retailed these NN movements bearing just the name Dent, but the book on Edward John Dent and the various Dent firms by Vaudrey Mercer provides much of the information to safely do so.
Nicole Nielsen were the foremost London watchmakers of the second half of the 19th century, supplying many of the finest watches to retailers such as Frodsham, Dent (M F and E J), Smith & Son, Roskell, etc. See my reprint of Nicole Nielsen's High-Class English Watches trade catalogue and my site Glossary for more information about this most important and still underrated London firm. NB: Though seeming to be fairly uniform, these NN movements show a great deal of variety and individual finishing touches (with Ingold inspired machinery and methods), and are certainly worthy of close study.
Lacking hands and dial with chips, otherwise in very good original and unbroken condition but the roller jewel also lacking and thus not working.
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