Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/969038/movement
Access Date: November 23, 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:
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E. Howard Watch Co. (Keystone)
Grade: Series 4
| Manufacturer: | E. Howard Watch Co. (Keystone) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 969038 | |
| Grade: | Series 4 | |
| Model: | 1905 | |
| Estimated Production Year: | 1908 | |
| Run Quantity: | 500 | |
| Grade/Model Run: | 18 of 24 | |
| Grade/Model Total Production: | 16,350 | |
| Variant Est. Production: | 7,420 (16S-M1905-17J-ONP) | |
| Size: | 16s | |
| Jewels: | 17j | |
| Jewel Material: | Ruby & Sapphire | |
| Jewel Setting: | Gold Settings (Screw-Set) | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Finish Pattern: | Checkerboard | |
| Movement Setting: | Pendant | |
| Plate: | 3/4 Plate | |
| Double Roller: | Yes | |
| Regulator: | Reed | |
| Hairspring: | Breguet | |
| Pallet Jewel Material: | Sapphire | |
| 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: | No | |
| Dial Feet Locations: | 10.7, 24.3, 48.9 | |
| U.S. Patents: | 781263, 796162, 886387, 900183, 992013, 971496, 978612, 981667 | |
| Movement Markings: | E. Howard Watch Co. Boston U.S.A. Adjusted 17 Jewels Pat'd. '05 |
|
| Case: | Various | |
| Run ID: | 102.G18.16S79.161905M73.O58.P93.17J76 | |
| Database Version: | v52.457 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 36.79 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 129.34 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 2.339% | |
| Registry Population: Scoped for This Run Only | 11 (2.20%) | |
| $ Estimated Value (12 Month Change): | -18.47% Analyzing 72 Sales | |
Production Metrics Tree: Grade Series 4
Target Profile: 16S-M1905-17J-ONP-A5PTI
| E. Howard Watch Co. (Keystone) Grade Series 4 (All Variations): 16,350 ETP | |
| 16S: 16,350 100.00% 16s, Grade Series 4 |
|
| 16S-M1905: 16,350 100.00% 16s, Grade Series 4, Model 1905 |
|
| 16S-M1905-17J: 16,350 100.00% 16s, Grade Series 4, Model 1905, 17 Jewels |
|
| 16S-M1905-17J-ONP: 7,420 45.38% 16s, Grade Series 4, Model 1905, 17 Jewels, Openface/Pendant/Nickel |
Other: 8,930
Other Configs or Unclassified |
| 16S-M1905-17J-ONP-A5PTI: 7,420 45.38% | |
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.
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Help Us Help Others By Improving the Database:
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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 · February 6, 2021
Serial Number 969454 was reported as accurate.
Anonymous · August 10, 2020
Serial Number 969322 was reported as accurate.
Anonymous · May 12, 2020
Serial Number 969399 was reported as accurate.
Anonymous · July 15, 2019
Serial Number 969173 was reported as accurate.
Anonymous · October 7, 2018
Serial Number 969424 was reported as accurate.
