Movement record · United States
Waltham Vanguard
Partially verifiedWaltham's top railroad grade, produced across several models and both 18 and 16 size, with high jewel counts, gold settings and heavy adjustment to position, temperature and isochronism.
Technical specifications
- Diameter
- 18 size early, 16 size in later production
- Height
- Varies by model and size
- Jewels
- 19, 21 or 23 depending on grade
- Frequency
- 18,000 vph (2.5 Hz)
- Power reserve
- Approx. 36 to 40 hours; some late grades marked for a longer run
- Winding
- Stem wind
- Setting
- Lever set on railway-service examples; pendant set on others
- Escapement
- Lever, jewelled to the centre on the highest grades
- Balance
- Bimetallic compensation balance; later grades with improved hairspring alloys
- Complications
- Subsidiary seconds, Up-and-down (wind) indicator on some grades
Identification features
- 'Vanguard' grade name engraved on the movement
- High jewel count with raised gold settings on many examples
- Some grades carry a wind-indicator dial and matching movement work
- 'Vanguard' engraved on the movement
- 19, 21 or 23 jewels
- Some later models show a power-reserve (up/down) indicator on the dial
Known variants
- 18 size Model 1892
- 16 size Model 1908
- Wind-indicator grades
- 18-size and 16-size
- Wind-indicator Vanguard (Model 1908 16-size)
Servicing notes
Mainsprings and common wheels remain obtainable; wind-indicator work is specialist and should not be attempted by a beginner.
General guidance only. Antique movements should be serviced by a qualified watchmaker.
Historical significance
Waltham's top-volume railroad grade, made from the 1890s into the 1950s; later 23-jewel versions with up-and-down power-reserve indicators are among the most sought-after American railroad watches.
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Photographs are illustrative examples of the type, not necessarily the exact object described. Verify details against the source file page.
Sources & references
- Waltham factory serial-number records as published by the NAWCC
- Specification varies by model and grade; figures here are given as ranges rather than single values.
Where sources disagree, the disagreement is stated rather than resolved silently.