Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/889568
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/889568
Access Date: April 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: Climax
| Manufacturer: | E. Howard Watch Co. (Keystone) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 889568 | |
| Grade: | Climax | |
| Model: | 1905 | |
| Estimated Production Year: | 1907 | |
| Run Quantity: | 500 | |
| Grade/Model Run: | 1 of 1 | |
| Grade/Model Total Production: | 500 | |
| Size: | 16s | |
| Jewels: | 7j | |
| Movement Configuration: | Openface | |
| Movement Finish: | Gilt | |
| Movement Setting: | Pendant | |
| Plate: | 3/4 Plate | |
| Regulator: | Plain | |
| Hairspring: | Breguet | |
| Standard Dial Type: | Single-Sunk | |
| Adjusted: | No | |
| Railroad Grade: | No | |
| Dial Feet Locations: | 10.7, 24.3, 48.9 | |
| U.S. Patents: | 781263, 796162, 886387, 900183, 992013, 971496, 978612, 981667 | |
| Case: | Various | |
| Run ID: | 30.G1.16S16.161905M16.O21.P27.7J1 | |
| Database Version: | v52.245 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 1.50 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 4.90 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.097% | |
| Registry Population: | 2 (0.40%) | |
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Research Note: Climax - U.S.A. (Gilt Movement, 7 Jewel, Plain Regulator), #889568: Verified as Gilt 7-Jewel Movement Marked "Climax U.S.A."
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Production Metrics Tree: Grade Climax
Target Profile: 16S-M1905-7J-OGP-U
| E. Howard Watch Co. (Keystone) Grade Climax (All Variations): 500 ETP |
| 16S: 500 100.00% 16s, Grade Climax |
| 16S-M1905: 500 100.00% 16s, Grade Climax, Model 1905 |
| 16S-M1905-7J: 500 100.00% 16s, Grade Climax, Model 1905, 7 Jewels |
| 16S-M1905-7J-OGP: 500 100.00% 16s, Grade Climax, Model 1905, 7 Jewels, Openface/Pendant/Gilt |
| 16S-M1905-7J-OGP-U: 500 100.00% |
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
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There are 2 watches in the population registry for this run with 1 image.
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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.
JerryT Waltham Expert Small Watch Expert 425 · June 9, 2021
Serial Number 889568 was reported as inaccurate.
Note: 7 jewel gilt movement, marked Climax U.S.A. is
16-size. Not aware of any other sizes of this
model.
16-size. Not aware of any other sizes of this
model.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Grade changed from Unknown to Climax
