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 1

Manufacturer: E. Howard Watch Co. (Keystone) Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 1015375 Question Mark
Grade: Series 1 Question Mark
Model: 1903 Question Mark
Estimated Production Year: 1903 Question Mark
Run Quantity: 400 Question Mark
Grade/Model Run: 2 of 2 Question Mark
Grade/Model Total Production: 1,000 Question Mark
Variant Est. Production: 400 (16S-M1903-19J-ONP) Question Mark
Size: 16s Question Mark
Jewels: 19j Question Mark
Jewel Material: Ruby & Sapphire Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Paralell Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Pendant Question Mark
Plate: 3/4 Plate Question Mark
Double Roller: Yes Question Mark
Barrel: Motor Question Mark
Regulator: Reed Question Mark
Hairspring: Breguet Question Mark
Pallet Jewel Material: Sapphire Question Mark
Standard Dial Type: Double-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 3 or 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: Yes Question Mark
Movement Markings: E. Howard & Co.
Boston
19 Jewels
Adjusted
Case: Various Question Mark
Run ID: 145.G3.16S111.161903M2.O82.P119.19J11 Question Mark
Database Version: v52.462 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
1.20 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
4.13 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.077% Question Mark
Registry Population:
Scoped for This Run Only
2 (0.50%) Question Mark

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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.


Walt1943 Supporter 9 · May 28, 2024

Serial Number 1015152 was reported as inaccurate.

Note: 19j Equity by Waltham
Changes since this report was submitted:
Grade changed from 1 to Series 1
Railroad Grade changed from No to Yes

ed4181 1 · June 24, 2019

Serial Number 1015375 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever or Pendant to Pendant
Railroad Grade changed from No to Yes
Plate changed from Bridge to 3/4

lee571 Supporter 79 · January 15, 2019

Serial Number 1015080 was reported as inaccurate.

Note: Based on the September and November 2018 NAWCC
bulletin articles, this watch is a Waltham Model
1899 16 size, 3/4 plate 19 jewel watch built for
E. Howard Watch Co. for its 1905 order with
Waltham. I have serviced the watch and confirm
that it has on its parts 615080 related to its
Waltham’s serial number 12,615,080. The six
digit Waltham number is on parts underneath the
Howard 1015080 serial number on the barrel
bridge.. These two serial numbers are part of the
serial number listing in the November 2018 NAWCC
article for 400 16 size, 19 jewel open- faced
movements to be built by Waltham for E. Howard as
part of its 1905 order. According to the
articles, E. Howard re-used some of its Waltham-
built watch serial numbers again years later after
E. Howard Watch Co. was able to produce its own
watches. Also, the hairspring stud, regulator
jewel screw placement, the regulator arm, and the
mainspring arbor design are all unique to Waltham
movements. Other differences from your
description: my watch only says adjusted without
saying number of adjustments, mine is pendent set,
and the center wheels looks to be gold. The
articles also indicate watches like this were for
sale by Howard in 1906.
Curator Response: Thanks for the report. Yes, this information is indeed correct, and Howard utilized this serial range for early (Waltham) and later (Standard Production) movements.
Changes since this report was submitted:
Movement Setting changed from Lever or Pendant to Pendant
Railroad Grade changed from No to Yes
Plate changed from Bridge to 3/4