Illinois Watch Company Sangamo Special
Illinois's premier 16-size railroad movement, introduced in the early 1910s.
4 references
| Reference | Variant | Years | Dial | Size |
|---|---|---|---|---|
| Sangamo Special 19 Jewel | 16s, 19 jewel, lower jewel-count Sangamo Special variant | 1913–1923 | Not recorded | Not recorded |
| Sangamo Special 21 Jewel (Model 9) | 16s open-face, 21 jewel, adjusted six positions, premium dress-grade railroad-quality movement | 1913–1923 | white | Not recorded |
| Sangamo Special 23 Jewel (Model 9) | 16s open-face, 23 jewel, adjusted six positions, top standard jewel-count Sangamo Special variant | 1913–1923 | white | Not recorded |
| Sangamo Special Model 13 (Sixty Hour) | 16s open-face, 23 jewel, extended 60-hour mainspring, final and highest-spec Sangamo Special model | 1923–1930 | Not recorded | Not recorded |