Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1144502/movement
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1144502/movement
Access Date: May 07, 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 10
Manufacturer: | E. Howard Watch Co. (Keystone) | |
Manufacturer Location: | Waltham, Massachusetts | |
Movement Serial Number: | 1144502 | |
Grade: | Series 10 | |
Variation: | Ser. 10 | |
Model: | 1907 | |
Estimated Production Year: | 1912 | |
Run Quantity: | 500 | |
Grade/Model Run: | 2 of 23 | |
Grade/Model Total Production: | 17,800 | |
Variant Est. Production: | 15,550 (16S-M1907-21J-ONL) | |
Size: | 16s | |
Jewels: | 21j | |
Movement Configuration: | Openface | |
Movement Finish: | Nickel | |
Finish Pattern: | Parallel | |
Movement Inlay Color: | Black | |
Movement Setting: | Lever or Pendant | |
Plate: | Bridge Plate | |
Bridge Type: | Center | |
Double Roller: | Yes | |
Barrel: | Going | |
Regulator: | Reed | |
Hairspring: | Breguet | |
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 | |
Case: | Various | |
Run ID: | 233.G2.16S151.161907M60.O141.L17.21J23 | |
Database Version: | v52.260 | |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 53.59 | |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 178.08 | |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 3.445% | |
Registry Population: | 2 (0.40%) | |
$ Estimated Value (12 Month Change): | 14.34% Analyzing 171 Sales |
Production Metrics Tree: Grade Series 10
Target Profile: 16S-M1907-21J-ONL-A5PTI-SER. 10
E. Howard Watch Co. (Keystone) Grade Series 10 (All Variations): 17,800 ETP | |
16S: 17,800 100.00% 16s, Grade Series 10 |
|
16S-M1907: 17,800 100.00% 16s, Grade Series 10, Model 1907 |
|
16S-M1907-21J: 17,800 100.00% 16s, Grade Series 10, Model 1907, 21 Jewels |
|
16S-M1907-21J-ONL: 15,550 87.36% 16s, Grade Series 10, Model 1907, 21 Jewels, Openface/Lever or Pendant/Nickel |
Other: 2,250
Other Configs or Unclassified |
16S-M1907-21J-ONL-A5PTI: 15,550 87.36% | |
16S-M1907-21J-ONL-A5PTI-SER. 10: 15,550 87.36% |
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There are 2 watches in the population registry for this run with 2 images.
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