Swiss cylinder escapement pocket watch with subsidiary seconds hand
Record status
Individual type · partial
Period
1850-1899
According to the Science Museum Group, this Swiss cylinder escapement pocket watch dates from 1850 to 1899. The movement is fitted with eight jewels, and both the movement and case carry the mark 'GT'.
The watch case is constructed from brass, silver, and silver-plated metal, featuring an engine-turned silver back insert. The interior of the case back is marked '800M' and numbered 254161. On the dial side, it features black Roman numerals, decorative hands, and a subsidiary seconds subdial at the 6 o'clock position.
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
- Open-face watch
- Case Mark
- 800M
- Dimensions
- 14 x 45 mm
- Escapement
- Cylinder escapement
- Maker Mark
- GT
- Jewel Count
- 8 jewels
- Serial Number
- 254161
- Place recorded
- Switzerland
Design
- Visible features
- • White dial with black Roman numerals and an outer minute track • Subsidiary seconds dial positioned above 6 o'clock • Suspension bow and pendant at top without a winding crown • Decorative blued steel hour and minute hands • Circular metal case showing some edge wear
- Dial and Visual Presentation
- Direct visual inspection shows a white dial framed by a circular metal case displaying some edge wear. The dial is laid out with black Roman numerals and an outer minute track, with time shown via decorative blued steel hour and minute hands. Positioned above the 6 o'clock mark is a subsidiary seconds subdial. At the top of the case, a pendant and suspension bow are visible without a winding crown. The case back and movement are not shown in the primary dial photograph.
- Case Construction and Markings
- According to the Science Museum Group catalogue entry, the watch case measures 14 x 45 mm and is made from brass, silver, and silver-plated metal. It is described as a plated case featuring an engine-turned silver back insert. The interior of the case back is documented as being stamped '800M' and numbered 254161, with both the case and movement bearing the mark 'GT'.
- Reported Movement and Technical Details
- The museum record catalogues this timepiece as a Swiss cylinder escapement pocket watch dating to between 1850 and 1899, equipped with 8 jewels. Because the movement is not visible in the available front photograph, its physical arrangement, finish, and mechanical operation cannot be evaluated directly from the image and remain strictly source-reported.
Identification
- Object Number
- 2001-666
- Serial number
- 254161
- 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: Internal movement, cylinder escapement, and case-back marks are source-reported and not visible in the front photograph