Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1237979
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1237979
Access Date: April 17, 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
Ruby Banking Pins
Manufacturer: | E. Howard Watch Co. (Keystone) | |
Manufacturer Location: | Waltham, Massachusetts | |
Movement Serial Number: | 1237979 | |
Grade: | Series 0 | |
Variation: | Hooked Bridge Jeweled Banking Pins | |
Model: | 1907 | |
Estimated Production Year: | 1913 | |
Run Quantity: | 200 | |
Grade/Model Run: | 25 of 29 | |
Grade/Model Total Production: | 16,500 | |
Variant Est. Production: | 1,200 (16S-M1907-23J-ONP-A5PTI-HOOKED BRIDGE JEWELED BANKING PINS) | |
Size: | 16s | |
Jewels: | 23j | |
Jewel Material: | Ruby & Sapphire | |
Movement Configuration: | Openface | |
Movement Finish: | Nickel | |
Movement Setting: | Pendant | |
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: | No | |
Dial Feet Locations: | 10.7, 24.3, 48.9 | |
U.S. Patents: | 796162, 886387, 900183, 978612, 981667, 1062645 | |
Case: | Various | |
Run ID: | 278.G26.16S175.161907M79.O178.P181.23J36 | |
Database Version: | v52.235 | |
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 | 126.53 | |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 2.448% | |
Registry Population: | 4 (2.00%) | |
$ Estimated Value (12 Month Change): | -13.98% Analyzing 89 Sales |
Production Metrics Tree: Grade Series 0
Target Profile: 16S-M1907-23J-ONP-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 |
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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 |
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16S-M1907-23J-ONP: 2,950 17.10% 16s, Grade Series 0, Model 1907, 23 Jewels, Openface/Pendant/Nickel |
Other: 13,550
Other Configs or Unclassified |
||||
16S-M1907-23J-ONP-A5PTI: 2,950 17.10% | |||||
16S-M1907-23J-ONP-A5PTI-HOOKED BRIDGE JEWELED BANKING PINS: 1,200 6.96% |
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 with 2 images.
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