Illinois Watch Company Sangamo Special
Illinois's premier 16-size railroad movement, introduced in the early 1910s.
4 references
“Differs” marks a spec with different recorded values. — means not recorded.
| Spec | Sangamo Special 19 Jewel 16s, 19 jewel, lower jewel-count Sangamo Special variant | Sangamo Special 21 Jewel (Model 9) 16s open-face, 21 jewel, adjusted six positions, premium dress-grade railroad-quality movement | Sangamo Special 23 Jewel (Model 9) 16s open-face, 23 jewel, adjusted six positions, top standard jewel-count Sangamo Special variant | Sangamo Special Model 13 (Sixty Hour) 16s open-face, 23 jewel, extended 60-hour mainspring, final and highest-spec Sangamo Special model |
|---|---|---|---|---|
| Case | Not recorded | gold-filled or solid gold | gold-filled or solid gold | gold-filled or solid gold |
| Caliber Differs | 16 size | 16 size, Model 8 (hunting) / Model 9 (open face) | 16 size, Model 8 (hunting) / Model 9 (open face) | 16 size, Model 13 |
| Movement type | Manual | Manual | Manual | Manual |
| Jewels Differs | 19 | 21 | 23 | 23 |
| Power reserve | Not recorded | Not recorded | Not recorded | 60 h |
| Dial | Not recorded | white | white | Not recorded |
| Indices | Not recorded | Arabic or Roman numerals (varies by example) | Arabic or Roman numerals (varies by example) | Not recorded |
| Produced Differs | 1913–1923 | 1913–1923 | 1913–1923 | 1923–1930 |