Pocket Watch Database
Rockford Size 18s Model 4: Overview & Production
Model 4 Features
Movement Diagram
Note: Diagrams and photos displayed are intended to serve as a represenation of this model.
Plate cut, finishing style, jewel count, regulator, and other features may differ between grades within the same model designation.
Plate cut, finishing style, jewel count, regulator, and other features may differ between grades within the same model designation.
| Size | 18s |
| Configuration | Openface |
| Plate | Full |
| Setting | Lever |
| Finish | Gilt or Nickel |
| Model 4 Image Gallery | |
Model 4 Production
| Total Production: | ~18,600 |
| Est. Production Years: | 1883 - 1886 |
| Earliest Serial: | 191,101 |
| Latest Serial: | 248,000 |
| Runs: | ~12 |
| Smallest Run: | 800 |
| Largest Run: | 5,300 |
| Distinctive Grades: | 4 |
Model 4 Production Segments
| Model 4 (All Variations): 18,600 ETP | ||
| Nickel: 9,000 (48.39%) | Unknown: 1,100 (5.91%) | Gilt: 8,500 (45.70%) |
| Openface: 18,600 (100.00%) |
| Lever: 18,600 (100.00%) |
| 11j: 3,000 (16.13%) | 11/15j: 2,500 (13.44%) | 15j: 13,100 (70.43%) |