Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1067864
Access Date: December 24, 2024
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 8
Manufacturer: | E. Howard Watch Co. (Keystone) | |
Manufacturer Location: | Waltham, Massachusetts | |
Movement Serial Number: | 1067864 | |
Grade: | Series 8 | |
Variation: | Safety | |
Model: | 1908 | |
Estimated Production Year: | 1910 | |
Run Quantity: | 450 | |
Grade/Model Run: | 6 of 16 | |
Grade/Model Total Production: | 4,450 | |
Variant Est. Production: | 450 (12S-M1908-21J-ONP-A5PT-SAFETY) | |
Size: | 12s | |
Jewels: | 21j | |
Jewel Setting: | Burnished Jewels | |
Movement Configuration: | Openface | |
Movement Finish: | Nickel | |
Movement Setting: | Pendant | |
Plate: | Bridge Plate | |
Double Roller: | Yes | |
Regulator: | Reed | |
Hairspring: | Breguet | |
Standard Dial Type: | Single-Sunk | |
Adjusted: | Yes | |
Adjusted # of Positions: | 5 | |
Adjusted to Temperature: | Yes | |
Railroad Grade: | No | |
Movement Markings: | E. Howard Watch Co. Boston U.S.A. Adjusted 21 Jewels Pat'd '08 Five Positions and Temperature |
|
Case: | Various | |
Run ID: | 170.G6.12S20.121908M20.O100.P137.21J11 | |
Database Version: | v52.518 | |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 13.09 | |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 45.97 | |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.832% | |
Registry Population: Scoped for This Run Only | 4 (0.89%) | |
Research Note: #1067569: Verified certificate card indicates 21 Jewels (movement not seen). #1067729 and #1067853: Reported as 21 Jewels.
|
Production Metrics Tree: Grade Series 8
Target Profile: 12S-M1908-21J-ONP-A5PT-SAFETY
E. Howard Watch Co. (Keystone) Grade Series 8 (All Variations): 14,400 ETP | ||||
12S: 14,400 100.00% 12s, Grade Series 8 |
||||
12S-M1908: 4,450 30.90% 12s, Grade Series 8, Model 1908 |
Other: 9,950
Other Models or Unclassified |
|||
12S-M1908-21J: 3,365 23.37% 12s, Grade Series 8, Model 1908, 21 Jewels |
Other: 1,085
Other Jewels or Unclassified |
|||
12S-M1908-21J-ONP: 3,265 22.67% 12s, Grade Series 8, Model 1908, 21 Jewels, Openface/Pendant/Nickel |
Other: 100
Other Configs or Unclassified |
|||
12S-M1908-21J-ONP-A5PT: 3,265 22.67% | ||||
12S-M1908-21J-ONP-A5PT-SAFETY: 450 3.13% | Other: 2,815
Other Variants or Unclassified |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There are 4 watches in the population registry for this run with 2 images.
|
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.
tad001 6 · March 23, 2023
Serial Number 1067606 was reported as accurate.
Anpavl Supporter 43 · December 21, 2022
Serial Number 1067560 was reported as accurate.
tad001 6 · May 5, 2022
Serial Number 1067606 was reported as accurate.
Anonymous · August 7, 2021
Serial Number 1067729 was reported as inaccurate.
Anonymous · January 9, 2019
Serial Number 1067853 was reported as inaccurate.
AWeber62 97 · January 9, 2019
Serial Number 1067853 was reported as accurate.
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