Pocket Watch Database
Due to the lack of existing factory records, our E. Howard Watch Co. (Keystone) database has been reconstructed using observations of known watches.
As a result, the information may contain inaccuracies. Please let us know if you have details that can improve the database.
From the American Horology Archive:
E. Howard Watch Co. (Keystone)
Grade: Series 8
|Manufacturer:||E. Howard Watch Co. (Keystone)|
|Manufacturer Location:||Waltham, Massachusetts|
|Movement Serial Number:||1066809|
|Estimated Production Year:||1911|
|Adjusted # of Positions:||5|
|Adjusted to Temperature:||Yes|
Research Note: #1066894: Reported as Stamped "21 Jewels."
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Data Verification Reports
Anonymous · January 12, 2019
Serial Number 1066894 was reported as inaccurate.