Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1188272
Access Date: April 15, 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:
-Series11-16s.jpg)
E. Howard Watch Co. (Keystone)
Grade: Series 11
| Manufacturer: | E. Howard Watch Co. (Keystone) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 1188272 | |
| Grade: | Series 11 | |
| Variation: | Arrow and Star | |
| Model: | E | |
| Estimated Production Year: | 1912 | |
| Run Quantity: | 1,500 | |
| Grade/Model Run: | 2 of 11 | |
| Grade/Model Total Production: | 25,100 | |
| Variant Est. Production: | 13,100 (16S-ME-21J-ONL-A5PTI-ARROW AND STAR) | |
| Size: | 16s | |
| Jewels: | 21j | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Movement Setting: | Lever | |
| Plate: | Bridge Plate | |
| Hairspring: | Breguet | |
| 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 | |
| Case: | Various | |
| Run ID: | 264.G2.16S173.M2.O167.L46.21J39 | |
| Database Version: | v52.235 | |
| 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 | 251.15 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 4.858% | |
| Registry Population: | 11 (0.73%) | |
| $ Estimated Value (12 Month Change): | 0.57% Analyzing 197 Sales | |
Production Metrics Tree: Grade Series 11
Target Profile: 16S-ME-21J-ONL-A5PTI-ARROW AND STAR
| 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 AND STAR: 13,100 52.19% | |
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.
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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.
Anonymous · September 30, 2023
Serial Number 1189292 was reported as accurate.
Anonymous · August 12, 2023
Serial Number 1188198 was reported as accurate.
mbellich Supporter 29 · November 4, 2022
Serial Number 1188510 was reported as accurate.
Anonymous · September 1, 2022
Serial Number 1188674 was reported as accurate.
Anonymous · August 22, 2021
Serial Number 1188470 was reported as accurate.
Anonymous · August 28, 2020
Serial Number 1188485 was reported as accurate.
2mnyboxers Supporter 399 · May 12, 2020
Serial Number 1188427 was reported as accurate.
Automatic 254 · May 8, 2020
Serial Number 1188427 was reported as accurate.
rmwatchandclock Supporter 365 · March 17, 2020
Serial Number 1188347 was reported as accurate.
Anonymous · August 9, 2019
Serial Number 1188485 was reported as accurate.
Anonymous · May 30, 2019
Serial Number 1189037 was reported as accurate.
Anonymous · March 28, 2019
Serial Number 1189037 was reported as accurate.
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