Pocket Watch Database

E. Howard Watch Co. (Keystone) Size 12s Model 1912: Overview & Production

E. Howard Watch Co. (Keystone) Model 1912 is a 12-Size bridge-plate pendant-set movement featuring a nickel finish.

Model 1912 Features (Variation 1)

E. Howard Watch Co. (Keystone) Model 12s 1912 Diagram

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.
Size 12s
Configuration Openface
Plate Bridge
Setting Pendant
Finish Nickel
Notes Marked "Pat'd '12"
Model 1912 Image Gallery

Model 1912 Features (Variation 2)

E. Howard Watch Co. (Keystone) Model 12s 1912 Diagram

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.
Size 12s
Configuration Hunting
Plate Bridge
Setting Pendant
Finish Nickel
Notes Marked "Pat'd '12"
Model 1912 Image Gallery

Model 1912 Production

Total Production: ~193,450
Est. Production Years: 1911 - 1929
Earliest Serial: 1,067,501
Latest Serial: 1,403,000
Runs: ~39
Smallest Run: 50
Largest Run: 39,500
Distinctive Grades: 3

Model 1912 Production Segments

Model 1912 (All Variations): 193,450 ETP
Nickel: 193,450 (100.00%)
Openface: 146,050 (75.50%) Unknown: 46,600 (24.09%) Hunting: 800 (0.41%)
Pendant: 193,450 (100.00%)
17j: 172,700 (89.27%) 19j: 12,000 (6.20%) 21j: 450 (0.23%) 23j: 8,300 (4.29%)