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 5 Pocket Watch

E. Howard Watch Co. (Keystone)

Grade: Series 5

Manufacturer: E. Howard Watch Co. (Keystone) Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 1104193 Question Mark
Grade: Series 5 Question Mark
Variation: Login to View for Free Question Mark
Model: 1907 Question Mark
Estimated Production Year: Login to View for Free Question Mark
Run Quantity: Login to View for Free Question Mark
Grade/Model Run: Login to View for Free Question Mark
Grade/Model Total Production: Login to View for Free Question Mark
Variant Est. Production: Login to View for Free Question Mark
Size: 16s Question Mark
Jewels: 19j Question Mark
Jewel Material: Login to View for Free Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Wind Mechanism: Pendant Question Mark
Plate: Bridge Plate Question Mark
Bridge Type: Center Question Mark
Double Roller: Yes Question Mark
Barrel: Jeweled Safety Question Mark
Regulator: Login to View for Free Question Mark
Hairspring: Login to View for Free Question Mark
Pallet Jewel Material: Sapphire Question Mark
Standard Dial Type: Login to View for Free Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: Login to View for Free Question Mark
Dial Feet Locations: Login to View for Free Question Mark
Movement Markings: Login to View for Free
Case: Various Question Mark
Run ID: 204.G20.16S138.161907M38.O126.L26.19J30 Question Mark
Database Version: v52.645 Question Mark
Advanced Metrics
Members Only Data. Login or create a free account to unlock.
Registry Population:
Scoped for This Run Only
7 (0.70%) Question Mark
$ Estimated Value (12 Month Change): -2.40% Analyzing 105 Sales Question Mark
Research Note: #1104312 and 1104469: Reported as Marked "No. 5"
13 Additional Member-Only Data Points Available

The following information is unlocked with a free account:

Variation, Estimated Production Year, Run Quantity, Grade/Model Run, Grade/Model Total Production, Variant Est. Production, Jewel Material, Regulator Type, Hairspring, Standard Dial Type, Railroad Grade Designation, Dial Feet Locations, Movement Markings

Help Us Help Others By Improving the Database:

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Verification Reports for this Run

The following reports have been graciously submitted by dedicated members in reference to this production run. These reports are useful to verify data and track inaccuracies that require further research. Please note that reports may contain inaccurate information or assumptions that must be dilligently considered with other available sources.


joe4646 Supporter 44 · June 28, 2024

Serial Number 1104617 was reported as accurate.

Tcorsette 1 · February 8, 2022

Serial Number 1104705 was reported as accurate.

Anonymous · July 10, 2021

Serial Number 1104819 was reported as accurate.

Anonymous · March 30, 2021

Serial Number 1104533 was reported as accurate.

Anonymous · March 30, 2021

Serial Number 1104533 was reported as accurate.

rmwatchandclock Supporter 384 · November 9, 2020

Serial Number 1104448 was reported as accurate.

Anonymous · November 11, 2019

Serial Number 1104398 was reported as accurate.

E. Howard Watch Co. (Keystone) Grade Series 5 Pocket Watch