Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/959103/movement
Access Date: September 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:
![E. Howard Watch Co. (Keystone) Grade Series 4 Pocket Watch](https://pocketwatchdatabase.com/assets/images/cuts/E.HowardWatchCo.(Keystone)-Series4-16s.jpg)
E. Howard Watch Co. (Keystone)
Grade: Series 4
Manufacturer: | E. Howard Watch Co. (Keystone) | ![]() |
Manufacturer Location: | Waltham, Massachusetts | ![]() |
Movement Serial Number: | 959103 | ![]() |
Grade: | Series 4 | ![]() |
Model: | 1905 | ![]() |
Estimated Production Year: | 1908 | ![]() |
Run Quantity: | 1,000 | ![]() |
Grade/Model Run: | 13 of 26 | ![]() |
Grade/Model Total Production: | 16,650 | ![]() |
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: | Double-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 | ![]() |
Case: | Various | ![]() |
Run ID: | 91.G13.16S68.161905M62.O54.P82.17J65 | ![]() |
Database Version: | v52.387 | ![]() |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 37.69 | ![]() |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 148.22 | ![]() |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 2.202% | ![]() |
Registry Population: Scoped for This Run Only | 20 (2.00%) | ![]() |
$ Estimated Value (12 Month Change): | -18.02% Analyzing 69 Sales | ![]() |
Production Metrics Tree: Grade Series 4
Target Profile: 16S-M1905-17J-ONP-A5PTI
E. Howard Watch Co. (Keystone) Grade Series 4 (All Variations): 16,650 ETP | |
16S: 16,650 100.00% 16s, Grade Series 4 |
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16S-M1905: 16,650 100.00% 16s, Grade Series 4, Model 1905 |
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16S-M1905-17J: 16,650 100.00% 16s, Grade Series 4, Model 1905, 17 Jewels |
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16S-M1905-17J-ONP: 7,420 44.56% 16s, Grade Series 4, Model 1905, 17 Jewels, Openface/Pendant/Nickel |
Other: 9,230
Other Configs or Unclassified |
16S-M1905-17J-ONP-A5PTI: 7,420 44.56% |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There are 20 watches in the population registry for this run.
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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.
skippytwo 10 · November 22, 2019
Serial Number 959896 was reported as accurate.
WLBelkriver33 804 · March 24, 2019
Serial Number 959331 was reported as accurate.
![E. Howard Watch Co. (Keystone) Grade Series 4 Pocket Watch](https://pocketwatchdatabase.com/assets/images/cuts/E.HowardWatchCo.(Keystone)-Series4-16s.jpg)
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