Hampden Watch Company John Hancock
18-size, 21-jewel railroad grade, stem-wind and lever-set, adjusted to 5 positions; documented examples date circa 1898-1909.
1 reference
| Reference | Variant | Years | Dial | Size |
|---|---|---|---|---|
| John Hancock 21J | 18s, 21 jewel, stem wind, lever set, adjusted 5 positions | 1896–1910 | Not recorded | Not recorded |