Rockford Watch Company 18 Size Grade 87 (Model 7)
circa 1891, Model 7 movement generation
1 reference
| Reference | Variant | Years | Dial | Size |
|---|---|---|---|---|
| 87 | 18s, 15 jewel, adjusted to heat, cold, and positions, Model 7 full-plate movement | 1891 | Not recorded | Not recorded |