Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1362730
Access Date: November 28, 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 11
Manufacturer: | E. Howard Watch Co. (Keystone) | |
Manufacturer Location: | Waltham, Massachusetts | |
Movement Serial Number: | 1362730 | |
Grade: | Series 11 | |
Variation: | Arrow.RecoilClick | |
Model: | E | |
Estimated Production Year: | 1919 | |
Run Quantity: | 3,000 | |
Grade/Model Run: | 8 of 12 | |
Grade/Model Total Production: | 25,100 | |
Variant Est. Production: | 10,500 (16S-ME-21J-ONL-A5PTI-ARROW.RECOILCLICK) | |
Size: | 16s | |
Jewels: | 21j | |
Jewel Setting: | Burnished Jewels | |
Movement Configuration: | Openface | |
Movement Finish: | Nickel | |
Movement Setting: | Lever | |
Plate: | Bridge Plate | |
Regulator: | Micrometric | |
Hairspring: | Breguet | |
Standard Dial Type: | Single-Sunk | |
Adjusted: | Yes | |
Adjusted to Position: | Yes | |
Adjusted # of Positions: | 5 | |
Adjusted to Temperature: | Yes | |
Adjusted to Isochronism: | Yes | |
Railroad Grade: | Yes | |
Railroad Grade Classification: | Class A | |
Movement Markings: | E. Howard Watch Co. Boston U.S.A. Railroad Chronometer Series 11 [Star in Arrow] 21 Jewels R.R. Adjustment Temperature Five Positions Pat'd '08 |
|
Case: | Various | |
Run ID: | 317.G8.16S201.M8.O229.L70.21J52 | |
Database Version: | v52.469 | |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 75.57 | |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 265.78 | |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 4.804% | |
Registry Population: Scoped for This Run Only | 11 (0.37%) | |
$ Estimated Value (12 Month Change): | 0% Analyzing 206 Sales |
Production Metrics Tree: Grade Series 11
Target Profile: 16S-ME-21J-ONL-A5PTI-ARROW.RECOILCLICK
E. Howard Watch Co. (Keystone) Grade Series 11 (All Variations): 25,100 ETP | |
16S: 25,100 100.00% 16s, Grade Series 11 |
|
16S-ME: 25,100 100.00% 16s, Grade Series 11, Model E |
|
16S-ME-21J: 25,100 100.00% 16s, Grade Series 11, Model E, 21 Jewels |
|
16S-ME-21J-ONL: 25,100 100.00% 16s, Grade Series 11, Model E, 21 Jewels, Openface/Lever/Nickel |
|
16S-ME-21J-ONL-A5PTI: 25,100 100.00% | |
16S-ME-21J-ONL-A5PTI-ARROW.RECOILCLICK: 10,500 41.83% | Other: 14,600
Other Variants or Unclassified |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There are 11 watches in the population registry for this run with 3 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.
joe4646 Supporter 43 · July 2, 2024
Serial Number 1361212 was reported as accurate.
cjbrem Supporter 923 · April 6, 2024
Serial Number 1360152 was reported as accurate.
Mobilaero Top Contributor Supporter 307 · September 23, 2021
Serial Number 1362755 was reported as accurate.
Anonymous · August 9, 2021
Serial Number 1362730 was reported as inaccurate.
16 s
21 jewels
Kmorgan 9 · December 19, 2020
Serial Number 1361626 was reported as accurate.
Roberthunigan 25 · August 15, 2020
Serial Number 1360835 was reported as accurate.
KANDYMAN2014 14 · August 7, 2020
Serial Number 1360646 was reported as accurate.
Roberthunigan 25 · April 15, 2020
Serial Number 1360835 was reported as accurate.
Kaylyngrace1 4 · March 31, 2020
Serial Number 1360835 was reported as accurate.
Kaylyngrace1 4 · March 27, 2020
Serial Number 1360835 was reported as accurate.
WLBelkriver33 804 · March 19, 2019
Serial Number 1360694 was reported as accurate.
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