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The Encyclopedia of Horology

Source catalogue · individual objects

Object Catalogue

Individual objects described by auction houses, specialist dealers and collection catalogues. Attribution, dates and specifications remain source-reported unless independently established; rights clearance is pending.

Browse makers and their key pieces · Adams & Perry Watch Co. profile

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Adams & Perry No. 3 20-jewel Lancaster Watch movement, serial 1369, seen through a display back

Pocket watch · Open-face watch

Adams & Perry No. 3 20-Jewel "Lancaster Watch", Serial No. 1369

This pocket watch movement represents an early design produced by the Adams & Perry Watch Company, which was organized in 1874. According to the source, the model was designed by Edwin H. Perry and incorporates his patented plate construction and stem-setting mechanism. The movement is fitted with twenty jewels, an unusual specification during a period when 15 jewels were considered fully jeweled. The source reports that while frequently described as 19-size, its pillar plate measures slightly over 46 mm without the dial, closely matching the E. Howard & Co. 'N' size. It features a friction-fit snap-on dial secured by a metal perimeter ring.

Full description

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Macro view of the balance staff showing the notched safety roller and the wide roller jewel on the impulse roller table

Movement · Pocket watch movement

Adams & Perry Lancaster Watch Movement #1369

This movement represents an early American pocket watch design by Adams & Perry, introduced to the market in 1876. The source reports that the movement features a double roller escapement separating an impulse roller table from a smaller notched safety roller table. The impulse roller is fitted with an unusually wide, flattened pink roller jewel shaped like a tooth, reflecting a design inspired by George Savage's two-pin double roller escapement. The author notes this escapement configuration delegates the impulse action to the safety roller, employing the roller jewel solely for unlocking.

Full description

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