Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/982173/link
Access Date: December 23, 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:
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E. Howard Watch Co. (Keystone)
Grade: Series 4
| Manufacturer: | E. Howard Watch Co. (Keystone) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 982173 | |
| Grade: | Series 4 | |
| Model: | 1905 | |
| Estimated Production Year: | 1908 | |
| Run Quantity: | 1,500 | |
| Grade/Model Run: | 24 of 24 | |
| Grade/Model Total Production: | 16,350 | |
| Variant Est. Production: | 4,800 (16S-M1905-17J-ONL) | |
| 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: | Lever or 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: | No | |
| Dial Feet Locations: | 10.7, 24.3, 48.9 | |
| U.S. Patents: | 781263, 796162, 886387, 900183, 992013, 971496, 978612, 981667 | |
| Movement Markings: | E. Howard Watch Co. Boston U.S.A. Adjusted 17 Jewels Pat'd '05 |
|
| Case: | Various | |
| Run ID: | 125.G24.16S101.161905M88.O71.L3.17J92 | |
| Database Version: | v52.518 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 36.79 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 129.34 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 2.337% | |
| Registry Population: Scoped for This Run Only | 40 (2.67%) | |
| $ Estimated Value (12 Month Change): | -5.49% Analyzing 72 Sales | |
|
Research Note: Mixed Run (Lever-Set/Pendant-Set and Series Markings).
#982139: Reported as Marked "No. 2" and A5P. #982293: Verified with no series marking, checkerboard pattern, Lever-Set. #982400: Reported as Marked "No. 4" and A5P. #982528: Reported as Marked A5P. #982659: Reported as Marked "No. 4" and A5P. #982747: Reported as Marked A3P. #983074: Verified as Marked "No. 2" and "Adjusted 5 Pos." Checkerboard pattern. #983331: Verified with no series marking, checkerboard pattern. #983363: Reported as Marked "No. 2" and A5P with Parallel Pattern. |
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Production Metrics Tree: Grade Series 4
Target Profile: 16S-M1905-17J-ONL-A5PTI
| E. Howard Watch Co. (Keystone) Grade Series 4 (All Variations): 16,350 ETP | |
| 16S: 16,350 100.00% 16s, Grade Series 4 |
|
| 16S-M1905: 16,350 100.00% 16s, Grade Series 4, Model 1905 |
|
| 16S-M1905-17J: 16,350 100.00% 16s, Grade Series 4, Model 1905, 17 Jewels |
|
| 16S-M1905-17J-ONL: 4,800 29.36% 16s, Grade Series 4, Model 1905, 17 Jewels, Openface/Lever or Pendant/Nickel |
Other: 11,550
Other Configs or Unclassified |
| 16S-M1905-17J-ONL-A5PTI: 4,800 29.36% | |
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 40 watches in the population registry for this run with 3 images.
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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.
joe4646 Supporter 43 · July 5, 2024
Serial Number 982076 was reported as accurate.
Anonymous · October 5, 2023
Serial Number 983034 was reported as accurate.
PHIL1199 Supporter 1159 · October 4, 2022
Serial Number 982624 was reported as accurate.
MojoNixon 1 · March 20, 2022
Serial Number 983175 was reported as accurate.
Anonymous · May 28, 2021
Serial Number 982300 was reported as accurate.
Anonymous · December 28, 2020
Serial Number 982877 was reported as accurate.
Anonymous · January 10, 2020
Serial Number 982697 was reported as accurate.
Anonymous · October 5, 2019
Serial Number 982314 was reported as inaccurate.
positions. So I think its Railroad pockwatch? Plus
reeds regulator? Only thing could be jewels count.
Anonymous · October 5, 2019
Serial Number 982314 was reported as accurate.
Anonymous · July 21, 2019
Serial Number 983231 was reported as accurate.
Anonymous · June 30, 2019
Serial Number 983321 was reported as accurate.
Dustball Supporter 8 · June 10, 2019
Serial Number 983286 was reported as accurate.
Anonymous · March 14, 2019
Serial Number 982369 was reported as accurate.
