Pocket Watch Database
E. Howard Watch Co. (Keystone) Size 16s Model 1907: Grades
Model 1907 Grades
| Grade | Total Grade/Model Production | Runs | Est. Production Years | Earliest Serial | Latest Serial | Profile Code |
|---|---|---|---|---|---|---|
| Series 0 | 16,500 | 29 | 1910 - 1916 | 953,001 | 1,320,000 | 16s-M1907-23j-HNL/ONL/ONP/HNP |
| Series 1 | 5,700 | 7 | 1910 - 1912 | 970,501 | 1,115,000 | 16s-M1907-19j/21j-ONP/ONL |
| Series 10 | 17,800 | 23 | 1912 - 1916 | 1,136,501 | 1,319,500 | 16s-M1907-21j-ONL/ONP |
| Series 2 | 6,500 | 7 | 1912 - 1917 | 1,116,001 | 1,320,500 | 16s-M1907-17j-ONL/ONP/HNP |
| Series 5 | 16,600 | 27 | 1910 - 1912 | 970,001 | 1,154,200 | 16s-M1907-19j-ONL/HNL/HNP/ONP |