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: Climax

Private Label(s) in Run:

Climax U.S.A.

What is a Private Label?
Manufacturer: E. Howard Watch Co. (Keystone) Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 889568 Question Mark
Grade: Climax Question Mark
Model: 1905 Question Mark
Estimated Production Year: 1906 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 1 of 1 Question Mark
Grade/Model Total Production: 500 Question Mark
Size: 16s Question Mark
Jewels: 7j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Pendant Question Mark
Plate: 3/4 Plate Question Mark
Regulator: Plain Question Mark
Hairspring: Breguet Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Dial Feet Locations: 10.7, 24.3, 48.9 Question Mark
U.S. Patents: 781263, 796162, 886387, 900183, 992013, 971496, 978612, 981667 Question Mark
Movement Markings: Climax
U.S.A.
7 Jewels
Case: Various Question Mark
Run ID: 35.G1.16S17.161905M16.O26.P32.7J1 Question Mark
Database Version: v52.526 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
1.50 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
5.19 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.096% Question Mark
Registry Population:
Scoped for This Run Only
2 (0.40%) Question Mark
Research Note: Climax - U.S.A. (Gilt Movement, 7 Jewel, Plain Regulator), #889568: Verified as Gilt 7-Jewel Movement Marked "Climax U.S.A."

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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.


JerryT Waltham Expert Small Watch Expert 425 · June 9, 2021

Serial Number 889568 was reported as inaccurate.

Note: 7 jewel gilt movement, marked Climax U.S.A. is
16-size. Not aware of any other sizes of this
model.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Grade changed from Unknown to Climax