Pocket Watch Database

E. Howard Watch Co. (Keystone) Grade Series 11 (Model E) Production Metrics

Grade:

Series 11

Size:

16s

Model:

E

Total Runs:

12

Total Produced:

24,300

Production Era:

1912 - 1928

Earliest Serial:

#1,181,001

Latest Serial:

#1,396,600


E. Howard Watch Co. (Keystone) Grade Series 11 (Model E) Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1912,1914,1916,1919,1920,1921,1928]
[7500,6000,4700,2700,1800,1000,600]

E. Howard Watch Co. (Keystone) Grade Series 11 (All Models) Production Metrics

Grade:

Series 11

Size:

16s

Model:

E

Total Runs:

12

Total Produced:

24,300

Production Era:

1912 - 1928

Earliest Serial:

#1,181,001

Latest Serial:

#1,396,600


E. Howard Watch Co. (Keystone) Grade Series 11 Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1912,1913,1914,1915,1916,1917,1918,1919,1920,1921,1922,1923,1924,1925,1926,1927,1928]
[7500,0,6000,0,4700,0,0,2700,1800,1000,0,0,0,0,0,0,600]

E. Howard Watch Co. (Keystone) Grade Series 11 Production Runs

Run Sequence Run Start Run End Quantity Est. Production Year Profile Code
1 1,181,001 1,187,000 6,000 1912 16S-ME-21J-ONL-A5PTI
2 1,188,101 1,189,600 1,500 1912 16S-ME-21J-ONL-A5PTI-ARROW AND STAR
3 1,260,001 1,265,000 5,000 1914 16S-ME-21J-ONL-A5PTI
4 1,283,001 1,284,000 1,000 1914 16S-ME-21J-ONL-A5PTI
5 1,311,001 1,313,000 2,000 1916 16S-ME-21J-ONL-A5PTI
6 1,313,301 1,314,000 700 1916 16S-ME-21J-ONL-A5PTI-ARROW AND STAR
7 1,317,001 1,319,000 2,000 1916 16S-ME-21J-ONL-A5PTI-ARROW AND STAR
8 1,360,001 1,362,700 2,700 1919 16S-ME-21J-ONL-A5PTI-ARROW AND STAR
9 1,374,001 1,375,000 1,000 1920 16S-ME-21J-ONL-A5PTI-ARROW AND STAR
10 1,378,201 1,379,000 800 1920 16S-ME-21J-ONL-A5PTI-ARROW AND STAR
11 1,385,001 1,386,000 1,000 1921 16S-ME-21J-ONL-A5PTI-ARROW AND STAR
12 1,396,001 1,396,600 600 1928 16S-ME-21J-ONL-A5PTI-ARROW AND STAR
RUNS

12

FIRST

1,181,001

LAST

1,396,600

ESTIMATED PRODUCTION

24,300

PRODUCTION ERA

1912 - 1928