English fusee detached lever pocket watch movement by John Harrison, Liverpool
Record status
Individual type · partial
Period
c. 1830
This is an antique English fusee pocket watch movement attributed to circa 1830 and signed by John Harrison of Liverpool. The movement features a gilt 3/4 plate construction with a lever escapement and a gold balance wheel.
The upper plate is engraved in cursive script with "Detached lever by John Harrison, Liverpool, No2464". Measuring 41 mm in diameter by 5 mm in thickness, the movement lacks a dial and motion work, leaving the engraved balance cock, regulator, and lower gear train fully visible.
Evidence at a glance
- Linked sources
- 1
- Photograph views
- 1
- Catalogue references
- 0
Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.
Technical characteristics
- Type
- Pocket watch movement
- Item Code
- ME152
- Dimensions
- 41mm wide x 5mm
- Place recorded
- United Kingdom
- Missing Elements
- No dial and no motion work
- Maker / attribution
- John Harrison
- Movement Construction
- Gilt 3/4 plate fusee with lever escapement and gold balance wheel
- Maker and Serial Signature
- Detached lever by John Harrison, Liverpool, No2464
Design
- Visible features
- • Gilt 3/4 plate engraved in cursive script 'Detached lever by John Harrison, Liverpool, No2464' • Engraved gilt balance cock with regulator scale and jewel endstone setting • Gold balance wheel positioned over visible gear train wheels and escape wheel teeth • Gilt plate secured by blued steel screws • Winding square projecting through the upper plate
- Identity and Engravings
- The item is an unmounted English fusee pocket watch movement bearing engraved cursive text across its gilt upper plate. The inscription reads "Detached lever by John Harrison, Liverpool, No2464", indicating the maker and numbering. The vendor attributes the mechanism to circa 1830 and lists it under item code ME152, though this date remains a trade attribution rather than an independently documented production year.
- Physical Dimensions and Incomplete State
- According to the source documentation, the movement measures 41 mm wide by 5 mm in thickness. It is offered solely as a movement without an associated watch case. The listing explicitly notes that the movement has no dial and no motion work, meaning the hour and minute driving assembly is absent from the mechanism.
- Visible Plate and Escapement Construction
- The movement features a gilt 3/4 plate configuration secured by blued steel screws, with an exposed winding square projecting through the upper plate. Direct visual inspection shows an engraved gilt balance cock with a regulator scale and jewel endstone setting positioned over a gold balance wheel and visible escapement components. The vendor text characterizes the unit as a "gilt 3/4 plate fusee movement" having a "lever escapement and a gold balance wheel." The seller also states that the mechanism has an intact chain and balance and "will tick", though this reflects vendor operating assertions.
Identification
- Reference
- ME152
- Serial number
- 2464
- Source note
- Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.
Catalogue references
No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.
Research required
- Research required: Source notes the movement has no dial and no motion work
- Research required: Reported 95% mint condition and circa 1830 date are vendor assessments