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 10 Pocket Watch

E. Howard Watch Co. (Keystone)

Grade: Series 10

Manufacturer: E. Howard Watch Co. (Keystone)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1152164
Grade: Series 10
Variation: Ser. 10
Model: 1907
Estimated Production Year: 1912
Run Quantity: 2,500
Total Production: 18,000
Size: 16s
Jewels: 21j
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Parallel
Movement Inlay Color: Black
Movement Setting: Lever
Plate: Bridge Plate
Bridge Type: Center
Double Roller: Yes
Barrel: Going
Regulator: Reed
Hairspring: Breguet
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Dial Feet Locations: 10.7, 24.3, 48.9
Case: Various
Database Version: v48.258

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Data Verification Reports

1150501
Verification Serial Map
1153000

wepouaout 22 · April 3, 2022

Serial Number 1150774 was reported as inaccurate.

Note: Movement is lever set.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

cmdraven 3391 · December 11, 2021

Serial Number 1151367 was reported as accurate.

Blicquer Supporter 41 · November 12, 2021

Serial Number 1151714 was reported as accurate.

Blicquer Supporter 41 · September 27, 2021

Serial Number 1151714 was reported as inaccurate.

Note: This watch is lever set.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Movement Setting changed from Lever or Pendant to Lever
Railroad Grade changed from No to Yes

mdmiller99 Supporter 26 · August 26, 2021

Serial Number 1150884 was reported as inaccurate.

Note: Lever Set
Curator Response: Thanks for the confirmation!
Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Doctahcoach Supporter 4 · July 24, 2021

Serial Number 1152045 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · June 19, 2021

Serial Number 1150578 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Fakwtc17 33 · April 7, 2021

Serial Number 1152564 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever or Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · March 27, 2021

Serial Number 1150677 was reported as inaccurate.

Note: This serial number is a lever set movement.
Believe it rates as railroad grade.
Curator Response: Correct. A Lever-Set Series 10 would have qualified for railroad service.
Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · January 17, 2021

Serial Number 1152091 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Timothyj33 1 · October 24, 2020

Serial Number 1150847 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · August 18, 2020

Serial Number 1150578 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · August 17, 2020

Serial Number 1152232 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · August 9, 2020

Serial Number 1151863 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · July 10, 2020

Serial Number 1151863 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · April 21, 2020

Serial Number 1150898 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · October 23, 2019

Serial Number 1152257 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · October 14, 2019

Serial Number 1152257 was reported as inaccurate.

Note: Mine has original Montgomery dial. I believe it is
a RR model. Thank you.
Curator Response: Thanks for the report. This run is mixed with pendant-set and lever-set movements. Yes, if your watch is lever-set, it would have qualified for railroad service.
Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · September 8, 2019

Serial Number 1152045 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

oilseed Supporter 462 · July 18, 2019

Serial Number 1151451 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · April 25, 2019

Serial Number 1150563 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · April 22, 2019

Serial Number 1150563 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

WLBelkriver33 804 · March 2, 2019

Serial Number 1151703 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

pwilliams9874 18 · January 30, 2019

Serial Number 1152164 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · November 26, 2018

Serial Number 1151272 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Mixed to Lever
Railroad Grade changed from No to Yes

Anonymous · October 17, 2018

Serial Number 1152211 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface
Movement Setting changed from Lever or Pendant to Lever
Railroad Grade changed from No to Yes
E. Howard Watch Co. (Keystone) Grade Series 10 Pocket Watch