Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/976030
Access Date: November 08, 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:
-Series0-16s.jpg)
E. Howard Watch Co. (Keystone)
Grade: Series 0
| Manufacturer: | E. Howard Watch Co. (Keystone) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 976030 | |
| Grade: | Series 0 | |
| Variation: | Straight Bridge Jeweled Barrel | |
| Model: | 1907 | |
| Estimated Production Year: | 1908 | |
| Run Quantity: | 1,000 | |
| Grade/Model Run: | 6 of 28 | |
| Grade/Model Total Production: | 15,900 | |
| Variant Est. Production: | 1,000 (16S-M1907-23J-ONL-A5PTI-STRAIGHT BRIDGE JEWELED BARREL) | |
| Size: | 16s | |
| Jewels: | 23j | |
| Jewel Material: | Ruby & Sapphire | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Finish Pattern: | Paralell | |
| Movement Setting: | Lever | |
| Plate: | Bridge Plate | |
| Bridge Type: | Center | |
| Double Roller: | Yes | |
| Barrel: | Jeweled Safety | |
| 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: | Yes | |
| Dial Feet Locations: | 10.7, 24.3, 48.9 | |
| U.S. Patents: | 796162, 886387, 900183, 978612, 981667, 1062645 | |
| Movement Markings: | E. Howard Watch Co. Boston U.S.A. Adjusted 19 Jewels Pat'd '08 |
|
| Case: | Various | |
| Run ID: | 117.G6.16S94.161907M10.O68.L8.23J8 | |
| Database Version: | v52.428 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 39.29 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 138.14 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 2.498% | |
| Registry Population: Scoped for This Run Only | 5 (0.50%) | |
| $ Estimated Value (12 Month Change): | -1.35% Analyzing 95 Sales | |
|
Research Note: #976014: Reported as Marked A5P. #976355: Reported as Lever-Set.
|
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Production Metrics Tree: Grade Series 0
Target Profile: 16S-M1907-23J-ONL-A5PTI-STRAIGHT BRIDGE JEWELED BARREL
| E. Howard Watch Co. (Keystone) Grade Series 0 (All Variations): 16,750 ETP | |||
| 16S: 16,750 100.00% 16s, Grade Series 0 |
|||
| 16S-M1907: 15,900 94.93% 16s, Grade Series 0, Model 1907 |
Other: 850
Other Models or Unclassified |
||
| 16S-M1907-23J: 15,900 94.93% 16s, Grade Series 0, Model 1907, 23 Jewels |
|||
| 16S-M1907-23J-ONL: 11,600 69.25% 16s, Grade Series 0, Model 1907, 23 Jewels, Openface/Lever/Nickel |
Other: 4,300
Other Configs or Unclassified |
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| 16S-M1907-23J-ONL-A5PTI: 11,600 69.25% | |||
| 16S-M1907-23J-ONL-A5PTI-STRAIGHT BRIDGE JEWELED BARREL: 1,000 5.97% | Other: 10,600
Other Variants or Unclassified |
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Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 5 watches in the population registry for this run with 1 image.
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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 976592 was reported as inaccurate.
Anonymous · April 3, 2024
Serial Number 976702 was reported as accurate.
Anonymous · March 1, 2024
Serial Number 976836 was reported as inaccurate.
grade lever set movement
Anonymous · February 5, 2023
Serial Number 976682 was reported as accurate.
Anonymous · March 9, 2022
Serial Number 976565 was reported as inaccurate.
Anonymous · February 1, 2022
Serial Number 976362 was reported as accurate.
Anonymous · September 13, 2021
Serial Number 976166 was reported as accurate.
Time4U 47 · September 10, 2021
Serial Number 976464 was reported as inaccurate.
Time4U 47 · September 10, 2021
Serial Number 976464 was reported as inaccurate.
23Greenwich Supporter 249 · July 8, 2021
Serial Number 976405 was reported as accurate.
dstuartblue 17 · March 13, 2021
Serial Number 976056 was reported as inaccurate.
dfchong 837 · November 24, 2020
Serial Number 976056 was reported as accurate.
dstuartblue 17 · November 23, 2020
Serial Number 976596 was reported as inaccurate.
Anonymous · November 19, 2020
Serial Number 976056 was reported as inaccurate.
snellingt Supporter 32 · August 21, 2020
Serial Number 976362 was reported as accurate.
bunnofnickle 67 · June 30, 2020
Serial Number 976771 was reported as accurate.
orione6a 5 · February 15, 2020
Serial Number 976857 was reported as accurate.
Anonymous · January 7, 2019
Serial Number 976355 was reported as inaccurate.
Lever set
Railroad grade
Anonymous · September 27, 2018
Serial Number 976550 was reported as accurate.
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