Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/978307
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/978307
Access Date: September 21, 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:
-Series4-16s.jpg)
E. Howard Watch Co. (Keystone)
Grade: Series 4
| Manufacturer: | E. Howard Watch Co. (Keystone) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 978307 | |
| Grade: | Series 4 | |
| Model: | 1905 | |
| Estimated Production Year: | 1908 | |
| Run Quantity: | 1,000 | |
| Grade/Model Run: | 25 of 26 | |
| Grade/Model Total Production: | 16,650 | |
| Variant Est. Production: | 5,100 (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: | 119.G25.16S95.161905M84.O69.L2.17J88 | |
| Database Version: | v52.400 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 37.69 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 148.22 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 2.202% | |
| Registry Population: Scoped for This Run Only | 20 (2.00%) | |
| $ Estimated Value (12 Month Change): | -18.02% Analyzing 70 Sales | |
|
Research Note: Mixed Run: Lever-Set and Pendant-Set.
|
||
Production Metrics Tree: Grade Series 4
Target Profile: 16S-M1905-17J-ONL-A5PTI
| E. Howard Watch Co. (Keystone) Grade Series 4 (All Variations): 16,650 ETP | |
| 16S: 16,650 100.00% 16s, Grade Series 4 |
|
| 16S-M1905: 16,650 100.00% 16s, Grade Series 4, Model 1905 |
|
| 16S-M1905-17J: 16,650 100.00% 16s, Grade Series 4, Model 1905, 17 Jewels |
|
| 16S-M1905-17J-ONL: 5,100 30.63% 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: 5,100 30.63% | |
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 20 watches in the population registry for this run with 1 image.
|
|||||
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.
Anonymous · May 14, 2024
Serial Number 978126 was reported as inaccurate.
Note: Lever Set
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever or Pendant
ticker32 Supporter 88 · June 20, 2022
Serial Number 978543 was reported as accurate.
Changes since this report was submitted:
Movement Setting changed from Mixed to Lever or Pendant
Anonymous · January 4, 2021
Serial Number 978776 was reported as accurate.
Changes since this report was submitted:
Movement Setting changed from Mixed to Lever or Pendant
WLBelkriver33 804 · March 8, 2019
Serial Number 978855 was reported as accurate.
Changes since this report was submitted:
Movement Setting changed from Mixed to Lever or Pendant
WLBelkriver33 804 · March 5, 2019
Serial Number 978855 was reported as accurate.
Changes since this report was submitted:
Movement Setting changed from Mixed to Lever or Pendant
WLBelkriver33 804 · March 4, 2019
Serial Number 978355 was reported as accurate.
Changes since this report was submitted:
Movement Setting changed from Mixed to Lever or Pendant
Anonymous · February 22, 2019
Serial Number 978375 was reported as accurate.
Changes since this report was submitted:
Movement Setting changed from Mixed to Lever or Pendant
Similar Watches For Sale
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
