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E. Howard Watch Co. (Keystone) Grade 1 (Model 1903) Production Metrics

E. Howard Watch Co. (Keystone) Grade 1 (All Models) Production Metrics

Grade:

1

Size:

Model:

1903

Total Runs:

2

Total Produced:

1,000

Production Era:

c.1911

Earliest Serial:

#1,010,001

Latest Serial:

#1,015,400

E. Howard Watch Co. (Keystone) Grade 1 Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1911]
[1000]

E. Howard Watch Co. (Keystone) Grade 1 Production Runs

Run Sequence Run Start Run End Quantity Est. Production Year Profile Code
1 1,010,001 1,010,600 600 1911 S-M1903-19J-HP-U
2 1,015,001 1,015,400 400 1911 S-M1903-19J-O-U
RUNS

2

 FIRST

1,010,001

 LAST

1,015,400

 ESTIMATED PRODUCTION

1,000

 PRODUCTION ERA

c.1911