Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-co/1005322
Access Date: January 17, 2025
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
Manufacturer: | E. Howard Watch Co. (Keystone) | |
Manufacturer Location: | Waltham, Massachusetts | |
Movement Serial Number: | 1005322 | |
Grade: | Series 5 | |
Variation: | Straight Bridge Jeweled Barrel | |
Model: | Bridge | |
Estimated Production Year: | 1903 | |
Run Quantity: | 400 | |
Grade/Model Run: | 1 of 1 | |
Grade/Model Total Production: | 400 | |
Size: | 16s | |
Jewels: | 23j | |
Jewel Material: | Ruby & Sapphire | |
Jewel Setting: | Raised Gold Settings (Screw-Set) | |
Movement Configuration: | Openface | |
Movement Finish: | Nickel | |
Finish Pattern: | Paralell | |
Movement Setting: | Pendant | |
Plate: | Bridge Plate | |
Double Roller: | Yes | |
Regulator: | Reed | |
Hairspring: | Breguet | |
Pallet Jewel Material: | Sapphire | |
Standard Dial Type: | Double-Sunk | |
Adjusted: | Yes | |
Adjusted to Position: | Yes | |
Adjusted # of Positions: | 5 | |
Adjusted to Temperature: | Yes | |
Adjusted to Isochronism: | Yes | |
Railroad Grade: | Yes | |
Movement Markings: | E. Howard Watch Co. Boston U.S.A. Adjusted 23 Jewels |
|
Case: | Various | |
Run ID: | 143.G6.16S109.M3.O83.P118.23J11 | |
Database Version: | v52.560 | |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 1.20 | |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 4.13 | |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.076% | |
Registry Population: Scoped for This Run Only | 1 (0.25%) | |
Research Note: No Series Markings
|
Production Metrics Tree: Grade Series 5
Target Profile: 16S-MBRIDGE-23J-ONP-A5PTI-STRAIGHT BRIDGE JEWELED BARREL
E. Howard Watch Co. (Keystone) Grade Series 5 (All Variations): 16,800 ETP | |
16S: 16,800 100.00% 16s, Grade Series 5 |
|
16S-MBRIDGE: 400 2.38% 16s, Grade Series 5, Model Bridge |
Other: 16,400
Other Models or Unclassified |
16S-MBRIDGE-23J: 400 2.38% 16s, Grade Series 5, Model Bridge, 23 Jewels |
|
16S-MBRIDGE-23J-ONP: 400 2.38% 16s, Grade Series 5, Model Bridge, 23 Jewels, Openface/Pendant/Nickel |
|
16S-MBRIDGE-23J-ONP-A5PTI: 400 2.38% | |
16S-MBRIDGE-23J-ONP-A5PTI-STRAIGHT BRIDGE JEWELED BARREL: 400 2.38% |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There is 1 watch in the population registry for this run.
|
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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.
Anonymous · July 29, 2024
Serial Number 1005181 was reported as inaccurate.
Bridge Model) pendant set
Anonymous · March 4, 2023
Serial Number 1005457 was reported as inaccurate.
Kurlander Supporter 25 · October 21, 2022
Serial Number 1005202 was reported as inaccurate.
indicates "19 Jewels,"
Anonymous · August 29, 2022
Serial Number 1005260 was reported as inaccurate.
Anonymous · January 8, 2022
Serial Number 1005235 was reported as inaccurate.
Anonymous · August 9, 2021
Serial Number 1005271 was reported as accurate.
Anonymous · August 1, 2020
Serial Number 1005209 was reported as inaccurate.
MeGhost 3 · May 26, 2020
Serial Number 1005209 was reported as inaccurate.