Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1117938
Access Date: November 01, 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:
-Series2-16s-Model1907.jpg)
E. Howard Watch Co. (Keystone)
Grade: Series 2
| Manufacturer: | E. Howard Watch Co. (Keystone) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 1117938 | |
| Grade: | Series 2 | |
| Model: | 1907 | |
| Estimated Production Year: | 1911 | |
| Run Quantity: | 2,500 | |
| Grade/Model Run: | 2 of 6 | |
| Grade/Model Total Production: | 6,500 | |
| Variant Est. Production: | 4,000 (16S-M1907-17J-ONL) | |
| Size: | 16s | |
| Jewels: | 17j | |
| Jewel Material: | Ruby & Sapphire | |
| Jewel Setting: | Burnished Jewels | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Movement Setting: | Lever | |
| Plate: | Bridge Plate | |
| Bridge Type: | Center | |
| Double Roller: | Yes | |
| Barrel: | Going | |
| 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 | |
| Dial Feet Locations: | 10.7, 24.3, 48.9 | |
| Movement Markings: | E. Howard Watch Co. Boston U.S.A. Series 2 17 Jewels [Empty Circle in Arrow] Pat'd. '08 Adjustment Five Positions Temperature |
|
| Case: | Various | |
| Run ID: | 219.G14.16S151.161907M51.O141.L37.17J117 | |
| Database Version: | v52.428 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 16.56 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 58.16 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 1.053% | |
| Registry Population: Scoped for This Run Only | 6 (0.24%) | |
Production Metrics Tree: Grade Series 2
Target Profile: 16S-M1907-17J-ONL-A5PTI
| E. Howard Watch Co. (Keystone) Grade Series 2 (All Variations): 11,250 ETP | ||
| 16S: 11,250 100.00% 16s, Grade Series 2 |
||
| 16S-M1907: 6,500 57.78% 16s, Grade Series 2, Model 1907 |
Other: 4,750
Other Models or Unclassified |
|
| 16S-M1907-17J: 6,500 57.78% 16s, Grade Series 2, Model 1907, 17 Jewels |
||
| 16S-M1907-17J-ONL: 4,000 35.56% 16s, Grade Series 2, Model 1907, 17 Jewels, Openface/Lever/Nickel |
Other: 2,500
Other Configs or Unclassified |
|
| 16S-M1907-17J-ONL-A5PTI: 4,000 35.56% | ||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 6 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.
Faberius Supporter 6 · July 19, 2024
Serial Number 1117456 was reported as inaccurate.
MoatsJustin1 top-contributor 5261 · November 16, 2023
Serial Number 1118870 was reported as accurate.
Anonymous · January 28, 2023
Serial Number 1118021 was reported as accurate.
Anonymous · August 24, 2022
Serial Number 1117014 was reported as accurate.
Anonymous · March 10, 2022
Serial Number 1118800 was reported as accurate.
sanderson 35 · March 30, 2021
Serial Number 1117797 was reported as accurate.
Anonymous · February 5, 2021
Serial Number 1117371 was reported as accurate.
Anonymous · September 15, 2020
Serial Number 1119097 was reported as inaccurate.
Anonymous · April 28, 2020
Serial Number 1117333 was reported as accurate.
texnet 684 · November 12, 2019
Serial Number 1117263 was reported as accurate.
Anonymous · October 13, 2019
Serial Number 1117720 was reported as accurate.
Anonymous · February 1, 2019
Serial Number 1118399 was reported as accurate.
Anonymous · January 11, 2019
Serial Number 1117303 was reported as accurate.
2229273 1 · November 27, 2018
Serial Number 1117920 was reported as inaccurate.
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