Pocket Watch Database

E. Howard Watch Co. (Keystone) Grade Series 15 (Model 1921) Production Metrics

Grade:

Series 15

Size:

10s

Model:

1921

Total Runs:

2

Total Produced:

5,000

Production Era:

1921 - 1928

Earliest Serial:

#8,001

Latest Serial:

#53,000


E. Howard Watch Co. (Keystone) Grade Series 15 (Model 1921) Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1921,1922,1923,1924,1928]
[1000,1000,1000,1000,1000]

E. Howard Watch Co. (Keystone) Grade Series 15 (All Models) Production Metrics

Grade:

Series 15

Size:

10s

Model:

1921

Total Runs:

2

Total Produced:

5,000

Production Era:

1921 - 1928

Earliest Serial:

#8,001

Latest Serial:

#53,000


E. Howard Watch Co. (Keystone) Grade Series 15 Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1921,1922,1923,1924,1925,1926,1927,1928]
[1000,1000,1000,1000,0,0,0,1000]

E. Howard Watch Co. (Keystone) Grade Series 15 Production Runs

Run Sequence Run Start Run End Quantity Est. Production Year Profile Code
1 8,001 12,000 4,000 1921 10S-M1921-19J-ONP-A5PTI
2 52,001 53,000 1,000 1928 10S-M1921-19J-ONP-A5PTI
RUNS

2

FIRST

8,001

LAST

53,000

ESTIMATED PRODUCTION

5,000

PRODUCTION ERA

1921 - 1928