Pocket Watch Database
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.
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1105411/link
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1105411/link
Access Date: November 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:
-Series5-16s.jpg)
E. Howard Watch Co. (Keystone)
Grade: Series 5
| Manufacturer: | E. Howard Watch Co. (Keystone) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 1105411 | |
| Grade: | Series 5 | |
| Variation: | Hooked Bridge Jeweled Barrel | |
| Model: | 1907 | |
| Estimated Production Year: | 1911 | |
| Run Quantity: | 500 | |
| Grade/Model Run: | 20 of 26 | |
| Grade/Model Total Production: | 16,400 | |
| Variant Est. Production: | 800 (16S-M1907-19J-HNP-A5PTI-HOOKED BRIDGE JEWELED BARREL) | |
| Size: | 16s | |
| Jewels: | 19j | |
| Jewel Material: | Ruby & Sapphire | |
| Movement Configuration: | Hunting | |
| Movement Finish: | Nickel | |
| Movement Setting: | Pendant | |
| Plate: | Bridge Plate | |
| Bridge Type: | Center | |
| Double Roller: | Yes | |
| Barrel: | Jeweled Safety | |
| 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 | |
| Movement Markings: | E. Howard Watch Co. Boston U.S.A. Adjusted 19 Jewels [Triangle in Arrow] Pat'd. '08 Extra Adjustment Five Positions Temperature |
|
| Case: | Various | |
| Run ID: | 201.G21.16S139.161907M39.H60.P153.19J31 | |
| Database Version: | v52.428 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 5.42 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 18.96 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.344% | |
| Registry Population: Scoped for This Run Only | 2 (0.40%) | |
| $ Estimated Value (12 Month Change): | -19.20% Analyzing 92 Sales | |
Production Metrics Tree: Grade Series 5
Target Profile: 16S-M1907-19J-HNP-A5PTI-HOOKED BRIDGE JEWELED BARREL
| E. Howard Watch Co. (Keystone) Grade Series 5 (All Variations): 16,800 ETP | |||
| 16S: 16,800 100.00% 16s, Grade Series 5 |
|||
| 16S-M1907: 16,400 97.62% 16s, Grade Series 5, Model 1907 |
Other: 400
Other Models or Unclassified |
||
| 16S-M1907-19J: 16,400 97.62% 16s, Grade Series 5, Model 1907, 19 Jewels |
|||
| 16S-M1907-19J-HNP: 1,800 10.71% 16s, Grade Series 5, Model 1907, 19 Jewels, Hunting/Pendant/Nickel |
Other: 14,600
Other Configs or Unclassified |
||
| 16S-M1907-19J-HNP-A5PTI: 1,800 10.71% | |||
| 16S-M1907-19J-HNP-A5PTI-HOOKED BRIDGE JEWELED BARREL: 800 4.76% | Other: 1,000
Other Variants or Unclassified |
||
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 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 · October 7, 2022
Serial Number 1105201 was reported as accurate.
Anonymous · March 20, 2022
Serial Number 1105124 was reported as accurate.
Anonymous · February 17, 2021
Serial Number 1105304 was reported as accurate.
Changes since this report was submitted:
Grade changed from ? to Series 5
JointVenture Supporter 128 · May 26, 2020
Serial Number 1105090 was reported as accurate.
Anonymous · April 18, 2019
Serial Number 1105372 was reported as inaccurate.
No further details were submitted with the report.
Changes since this report was submitted:
Grade changed from ? to Series 5
-
From This Runuploaded by weschmidt56
-
uploaded by Chipilon
-
uploaded by joe4646
-
uploaded by MichaelB
-
uploaded by ebsrods
-
uploaded by TWW369
-
uploaded by Clutterdude
-
uploaded by Mobilaero
-
uploaded by esoxhunter
-
uploaded by MichaelB