Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1159744/auth/login
Access Date: July 27, 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 0
Manufacturer: | E. Howard Watch Co. (Keystone) | |
Manufacturer Location: | Waltham, Massachusetts | |
Movement Serial Number: | 1159744 | |
Grade: | Series 0 | |
Variation: | Hooked Bridge Jeweled Banking Pins | |
Model: | 1907 | |
Estimated Production Year: | 1912 | |
Run Quantity: | 1,500 | |
Grade/Model Run: | 26 of 31 | |
Grade/Model Total Production: | 16,500 | |
Variant Est. Production: | 6,500 (16S-M1907-23J-ONL-A5PTI-HOOKED BRIDGE JEWELED BANKING PINS) | |
Size: | 16s | |
Jewels: | 23j | |
Jewel Material: | Ruby & Sapphire | |
Movement Configuration: | Openface | |
Movement Finish: | Nickel | |
Movement Setting: | Lever | |
Plate: | Bridge Plate | |
Bridge Type: | Center | |
Double Roller: | Yes | |
Barrel: | Going | |
Regulator: | Reed | |
Hairspring: | Breguet | |
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: | 796162, 886387, 900183, 978612, 981667, 1062645 | |
Movement Markings: | E. Howard Watch Co. Boston U.S.A. 23 Jewels Series 0 [Cross in Arrow] Pat'd. '10 Special Adjustment Five Positions Temperature |
|
Case: | Various | |
Run ID: | 261.G27.16S178.161907M76.O173.L51.23J35 | |
Database Version: | v52.365 | |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 38.08 | |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 140.60 | |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 2.223% | |
Registry Population: | 13 (0.87%) | |
$ Estimated Value (12 Month Change): | -13.70% Analyzing 90 Sales | |
Research Note: Ruby Banking Pins
|
Production Metrics Tree: Grade Series 0
Target Profile: 16S-M1907-23J-ONL-A5PTI-HOOKED BRIDGE JEWELED BANKING PINS
E. Howard Watch Co. (Keystone) Grade Series 0 (All Variations): 17,250 ETP | |||||
16S: 17,250 100.00% 16s, Grade Series 0 |
|||||
16S-M1907: 16,500 95.65% 16s, Grade Series 0, Model 1907 |
Other: 750
Other Models or Unclassified |
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16S-M1907-23J: 16,500 95.65% 16s, Grade Series 0, Model 1907, 23 Jewels |
|||||
16S-M1907-23J-ONL: 11,100 64.35% 16s, Grade Series 0, Model 1907, 23 Jewels, Openface/Lever/Nickel |
Other: 5,400
Other Configs or Unclassified |
||||
16S-M1907-23J-ONL-A5PTI: 11,100 64.35% | |||||
16S-M1907-23J-ONL-A5PTI-HOOKED BRIDGE JEWELED BANKING PINS: 6,500 37.68% |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There are 13 watches in the population registry for this run with 4 images.
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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.
avpalermo Supporter 616 · June 28, 2024
Serial Number 1159744 was reported as accurate.
2mnyboxers 399 · September 3, 2021
Serial Number 1159356 was reported as accurate.
bob62938 4 · February 14, 2021
Serial Number 1159054 was reported as accurate.
Silvercloud 183 · October 16, 2019
Serial Number 1159237 was reported as accurate.
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