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E. Howard Watch Co. (Keystone) Grade Series 7 (Model 1912) Production Metrics

Grade:

Series 7

Size:

12s

Model:

1912

Total Runs:

18

Total Produced:

174,500

Production Era:

1912 - 1929

Earliest Serial:

#1,147,001

Latest Serial:

#1,403,000

E. Howard Watch Co. (Keystone) Grade Series 7 (Model 1912) Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1912,1913,1914,1915,1917,1919,1920,1921,1929]
[32600,41000,11000,14000,39500,11000,9000,10000,6400]

E. Howard Watch Co. (Keystone) Grade Series 7 (All Models) Production Metrics

Grade:

Series 7

Size:

12s

Model:

1912

Total Runs:

39

Total Produced:

227,900

Production Era:

1910 - 1929

Earliest Serial:

#977,001

Latest Serial:

#1,403,000

E. Howard Watch Co. (Keystone) Grade Series 7 Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1910,1911,1912,1913,1914,1915,1916,1917,1918,1919,1920,1921,1922,1923,1924,1925,1926,1927,1928,1929]
[1000,39900,45100,41000,11000,14000,0,39500,0,11000,9000,10000,0,0,0,0,0,0,0,6400]

E. Howard Watch Co. (Keystone) Grade Series 7 Production Runs

Run Sequence Run Start Run End Quantity Est. Production Year Profile Code
1 977,001 978,000 1,000 1910 12S-M1908-17J-ONP-A3PT
2 987,401 988,450 1,050 1911 12S-M1908-17J-ONP-A3PT
3 988,501 991,000 2,500 1911 12S-M1908-17J-ONP-A3PT
4 994,001 996,350 2,350 1911 12S-M1908-17J-ONP-A3PT
5 996,401 998,100 1,700 1911 12S-M1908-17J-ONP-A3PT
6 998,201 999,800 1,600 1911 12S-M1908-17J-ONP-A3PT
7 1,000,001 1,002,500 2,500 1911 12S-M1908-17J-ONP-A3PT
8 1,051,001 1,054,000 3,000 1911 12S-M1908-17J-ONP-A3PT
9 1,054,501 1,055,700 1,200 1911 12S-M1908-17J-ONP-A3PT
10 1,058,001 1,058,500 500 1911 12S-M1908-17J-ONP-A3PT
11 1,061,001 1,063,000 2,000 1911 12S-M1908-17J-ONP-A3PT
12 1,064,001 1,066,000 2,000 1911 12S-M1908-17J-HNP-A3PT
13 1,068,001 1,070,500 2,500 1911 12S-M1908-17J-ONP-A3PT
14 1,071,001 1,075,000 4,000 1911 12S-M1908-17J-HNP-A3PT
15 1,080,001 1,084,000 4,000 1911 12S-M1908-17J-ONP-A3PT
16 1,087,001 1,090,000 3,000 1911 12S-M1908-17J-ONP-A3PT
17 1,091,001 1,094,000 3,000 1911 12S-M1908-17J-ONP-A3PT
18 1,097,001 1,100,000 3,000 1911 12S-M1908-17J-ONP-A3PT
19 1,110,001 1,110,500 500 1912 12S-M1908-17J-ONP-A3PT
20 1,130,001 1,136,000 6,000 1912 12S-M1908-17J-ONP-A3PT
21 1,137,001 1,143,000 6,000 1912 12S-M1908-17J-ONP-A3PT
22 1,147,001 1,148,000 1,000 1912 12S-M1912-17J-ONP-A3PT
23 1,156,501 1,158,000 1,500 1912 12S-M1912-17J-ONP-A3PT
24 1,162,001 1,170,000 8,000 1912 12S-M1912-17J-ONP-A3PT
25 1,172,501 1,172,600 100 1912 12S-M1912-17J-ONP-A3PT
26 1,173,001 1,181,000 8,000 1912 12S-M1912-17J-ONP-A3PT
27 1,190,001 1,204,000 14,000 1912 12S-M1912-17J-ONP-A3PT
28 1,205,001 1,217,000 12,000 1913 12S-M1912-17J-ONP-A3PT
29 1,220,001 1,230,000 10,000 1913 12S-M1912-17J-ONP-A3PT
30 1,231,001 1,237,000 6,000 1913 12S-M1912-17J-ONP-A3PT
31 1,247,001 1,260,000 13,000 1913 12S-M1912-17J-ONP-A3PT
32 1,267,001 1,278,000 11,000 1914 12S-M1912-17J-ONP-A3PT
33 1,290,001 1,304,000 14,000 1915 12S-M1912-17J-ONP-A3PT
34 1,320,501 1,360,000 39,500 1917 12S-M1912-17J-ONP-A3PT-ARROW AND EMPTY CIRCLE
35 1,363,001 1,374,000 11,000 1919 12S-M1912-17J-ONP-A3PT-ARROW AND EMPTY CIRCLE
36 1,375,001 1,378,000 3,000 1920 12S-M1912-17J-ONP-A3PT
37 1,379,001 1,385,000 6,000 1920 12S-M1912-17J-ONP-A3PT
38 1,386,001 1,396,000 10,000 1921 12S-M1912-17J-ONP-A3PT-ARROW AND EMPTY CIRCLE
39 1,396,601 1,403,000 6,400 1929 12S-M1912-17J-ONP-A3PT-ARROW AND EMPTY CIRCLE
RUNS

39

 FIRST

977,001

 LAST

1,403,000

 ESTIMATED PRODUCTION

227,900

 PRODUCTION ERA

1910 - 1929