Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1077765/movement
Access Date: July 02, 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 5 Pocket Watch](https://pocketwatchdatabase.com/assets/images/cuts/E.HowardWatchCo.(Keystone)-Series5-16s.jpg)
E. Howard Watch Co. (Keystone)
Grade: Series 5
Manufacturer: | E. Howard Watch Co. (Keystone) | ![]() |
Manufacturer Location: | Waltham, Massachusetts | ![]() |
Movement Serial Number: | 1077765 | ![]() |
Grade: | Series 5 | ![]() |
Variation: | Hooked Bridge Jeweled Barrel | ![]() |
Model: | 1907 | ![]() |
Estimated Production Year: | 1910 | ![]() |
Run Quantity: | 300 | ![]() |
Grade/Model Run: | 14 of 27 | ![]() |
Grade/Model Total Production: | 16,600 | ![]() |
Variant Est. Production: | 600 (16S-M1907-19J-HNL-A5PTI-HOOKED BRIDGE JEWELED BARREL) | ![]() |
Size: | 16s | ![]() |
Jewels: | 19j | ![]() |
Jewel Material: | Ruby & Sapphire | ![]() |
Movement Configuration: | Hunting | ![]() |
Movement Finish: | Nickel | ![]() |
Movement Setting: | Lever or Pendant | ![]() |
Plate: | Bridge Plate | ![]() |
Bridge Type: | Center | ![]() |
Barrel: | Jeweled Safety | ![]() |
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 | ![]() |
Movement Markings: | E. Howard Watch Co. Boston U.S.A. Adjusted 19 Jewels Pat'd. '08 Extra Adjustment Five Positions Temperature |
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Case: | Various | ![]() |
Run ID: | 179.G14.16S125.161907M28.H58.L57.19J25 | ![]() |
Database Version: | v52.353 | ![]() |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 4.81 | ![]() |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 13.84 | ![]() |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.281% | ![]() |
Registry Population: | 3 (1.00%) | ![]() |
$ Estimated Value (12 Month Change): | -13.18% Analyzing 89 Sales | ![]() |
Research Note: #1077848: Reported as 23-Jewel, Hunting, Pendant-Set (Consistent with Series 0)
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Production Metrics Tree: Grade Series 5
Target Profile: 16S-M1907-19J-HNL-A5PTI-HOOKED BRIDGE JEWELED BARREL
E. Howard Watch Co. (Keystone) Grade Series 5 (All Variations): 16,600 ETP | |||
16S: 16,600 100.00% 16s, Grade Series 5 |
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16S-M1907: 16,600 100.00% 16s, Grade Series 5, Model 1907 |
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16S-M1907-19J: 16,600 100.00% 16s, Grade Series 5, Model 1907, 19 Jewels |
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16S-M1907-19J-HNL: 1,600 9.64% 16s, Grade Series 5, Model 1907, 19 Jewels, Hunting/Lever or Pendant/Nickel |
Other: 15,000
Other Configs or Unclassified |
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16S-M1907-19J-HNL-A5PTI: 1,600 9.64% | |||
16S-M1907-19J-HNL-A5PTI-HOOKED BRIDGE JEWELED BARREL: 600 3.61% |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There are 3 watches in the population registry for this run with 1 image.
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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 · January 21, 2022
Serial Number 1077976 was reported as accurate.
Anonymous · August 16, 2020
Serial Number 1077721 was reported as accurate.
Anonymous · April 5, 2019
Serial Number 1077848 was reported as inaccurate.
not marked series 0 it is adjusted 5 positions and
only seemed to be offered in solid 14k gold
hunters cases. Also it is a stem set. And there is
no arrow on the bridge. It is very similar to the
series 0
![E. Howard Watch Co. (Keystone) Grade Series 5 Pocket Watch](https://pocketwatchdatabase.com/assets/images/cuts/E.HowardWatchCo.(Keystone)-Series5-16s.jpg)
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