Pocket Watch Database
Hamilton Size 18s Model 1: Overview & Production
Hamilton Model 1 is a 18-Size full-plate lever or pendant-set movement featuring a gilt or nickel finish.
Model 1 Features (Variation 1)

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 or Pendant |
Finish | Gilt or Nickel |
Model 1 Image Gallery |
Model 1 Features (Variation 2)

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 | Nickel |
Notes | Variant A Motor Barrel (3-Screw Set) |
Model 1 Image Gallery |
Model 1 Production
Total Production: | ~20 |
Est. Production Years: | 1893 - 1924 |
Earliest Serial: | 1 |
Latest Serial: | 1,450,500 |
Runs: | ~460 |
Distinctive Grades: | 15 |