Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/935968/link
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/935968/link
Access Date: July 29, 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: | 935968 | ![]() |
Grade: | Series 4 | ![]() |
Model: | 1905 | ![]() |
Estimated Production Year: | 1907 | ![]() |
Run Quantity: | 200 | ![]() |
Grade/Model Run: | 5 of 26 | ![]() |
Grade/Model Total Production: | 16,710 | ![]() |
Variant Est. Production: | 7,480 (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: | Yes | ![]() |
Dial Feet Locations: | 10.7, 24.3, 48.9 | ![]() |
U.S. Patents: | 781263, 796162, 886387, 900183, 992013, 971496, 978612, 981667 | ![]() |
Case: | Various | ![]() |
Run ID: | 62.G5.16S41.161905M40.O37.P53.17J43 | ![]() |
Database Version: | v52.365 | ![]() |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 37.87 | ![]() |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 139.82 | ![]() |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 2.210% | ![]() |
Registry Population: | 4 (2.00%) | ![]() |
$ Estimated Value (12 Month Change): | -16.29% 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): 16,710 ETP | |
16S: 16,710 100.00% 16s, Grade Series 4 |
|
16S-M1905: 16,710 100.00% 16s, Grade Series 4, Model 1905 |
|
16S-M1905-17J: 16,710 100.00% 16s, Grade Series 4, Model 1905, 17 Jewels |
|
16S-M1905-17J-ONP: 7,480 44.76% 16s, Grade Series 4, Model 1905, 17 Jewels, Openface/Pendant/Nickel |
Other: 9,230
Other Configs or Unclassified |
16S-M1905-17J-ONP-A5PTI: 7,480 44.76% |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There are 4 watches in the population registry for this run.
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![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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