Pocket Watch Database
E. Howard Watch Co. (Keystone) Grade Series 10 (Model 1907) Production Metrics
Grade:
Series 10
Size:
16s
Model:
1907
Total Runs:
21
Total Produced:
17,800
Production Era:
1909 - 1916
Earliest Serial:
#1,136,501
Latest Serial:
#1,319,500
E. Howard Watch Co. (Keystone) Grade Series 10 (Model 1907) Production By Year
Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1909,1910,1911,1912,1913,1914,1916]
[500,3100,3700,700,5300,2000,2500]
E. Howard Watch Co. (Keystone) Grade Series 10 (All Models) Production Metrics
Grade:
Series 10
Size:
16s
Model:
1907
Total Runs:
21
Total Produced:
17,800
Production Era:
1909 - 1916
Earliest Serial:
#1,136,501
Latest Serial:
#1,319,500
E. Howard Watch Co. (Keystone) Grade Series 10 Production By Year
Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1909,1910,1911,1912,1913,1914,1915,1916]
[500,3100,3700,700,5300,2000,0,2500]
E. Howard Watch Co. (Keystone) Grade Series 10 Production Runs
| Run Sequence | Run Start | Run End | Quantity | Est. Production Year | Profile Code |
|---|---|---|---|---|---|
| 1 | 1,136,501 | 1,137,000 | 500 | 1912 | 16S-M1907-21J-ONL-A5PTI |
| 2 | 1,144,501 | 1,145,000 | 500 | 1909 | 16S-M1907-21J-ONL-A5PTI |
| 3 | 1,146,001 | 1,147,000 | 1,000 | 1910 | 16S-M1907-21J-ONP-A5PTI |
| 4 | 1,148,001 | 1,149,820 | 1,820 | 1910 | 16S-M1907-21J-ONL-A5PTI |
| 5 | 1,149,821 | 1,149,900 | 80 | 1910 | 16S-M1907-21J-ONP-A5PTI |
| 6 | 1,149,901 | 1,150,000 | 100 | 1910 | 16S-M1907-21J-ONL-A5PTI |
| 7 | 1,150,001 | 1,150,100 | 100 | 1910 | 16S-M1907-21J-ONP-A5PTI |
| 8 | 1,150,101 | 1,153,000 | 2,900 | 1911 | 16S-M1907-21J-ONL-A5PTI |
| 9 | 1,153,001 | 1,153,800 | 800 | 1911 | 16S-M1907-21J-ONP-A5PTI |
| 10 | 1,153,801 | 1,154,000 | 200 | 1912 | 16S-M1907-21J-ONL-A5PTI |
| 11 | 1,154,201 | 1,155,000 | 800 | 1913 | 16S-M1907-21J-ONL-A5PTI |
| 12 | 1,158,001 | 1,158,500 | 500 | 1913 | 16S-M1907-21J-ONL-A5PTI |
| 13 | 1,170,001 | 1,170,300 | 300 | 1913 | 16S-M1907-21J-ONL-A5PTI |
| 14 | 1,170,301 | 1,170,320 | 20 | 1913 | 16S-M1907-21J-ONP-A5PTI |
| 15 | 1,170,321 | 1,172,000 | 1,680 | 1913 | 16S-M1907-21J-ONL-A5PTI |
| 16 | 1,238,001 | 1,239,000 | 1,000 | 1913 | 16S-M1907-21J-ONL-A5PTI |
| 17 | 1,239,001 | 1,239,150 | 150 | 1913 | 16S-M1907-21J-ONP-A5PTI |
| 18 | 1,239,151 | 1,240,000 | 850 | 1913 | 16S-M1907-21J-ONL-A5PTI |
| 19 | 1,278,001 | 1,280,000 | 2,000 | 1914 | 16S-M1907-21J-ONL-A5PTI |
| 20 | 1,309,001 | 1,311,000 | 2,000 | 1916 | 16S-M1907-21J-ONL-A5PTI |
| 21 | 1,319,001 | 1,319,500 | 500 | 1916 | 16S-M1907-21J-ONL-A5PTI |
RUNS21 |
FIRST1,136,501 |
LAST1,319,500 |
ESTIMATED PRODUCTION17,800 |
PRODUCTION ERA1909 - 1916 |