Pocket Watch Database

Movement Specs Production Pop. Registry 99 Value Ad Archive 1 For Sale Save to My Collection Print Page Find a Mainspring Find a Balance Staff
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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/923835
Access Date: November 10, 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 3 Pocket Watch
E. Howard Watch Co. (Keystone)

Grade: Series 3

Manufacturer: E. Howard Watch Co. (Keystone) Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 923835 Question Mark
Grade: Series 3 Question Mark
Model: 1905 Question Mark
Estimated Production Year: 1906 Question Mark
Run Quantity: 6,000 Question Mark
Grade/Model Run: 20 of 39 Question Mark
Grade/Model Total Production: 49,390 Question Mark
Variant Est. Production: 26,840 (16S-M1905-17J-HNP) Question Mark
Size: 16s Question Mark
Jewels: 17j Question Mark
Jewel Material: Ruby & Sapphire Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Circular Question Mark
Movement Setting: Pendant Question Mark
Plate: 3/4 Plate Question Mark
Regulator: Reed Question Mark
Hairspring: Breguet Question Mark
Pallet Jewel Material: Sapphire Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 3 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Dial Feet Locations: 10.7, 24.3, 48.9 Question Mark
U.S. Patents: 781263, 796162, 886387, 900183, 992013, 971496, 978612, 981667 Question Mark
Movement Markings: E. Howard Watch Co.
Boston U.S.A.
Adjusted
17 Jewels
Pat'd. '05
Case: Various Question Mark
Run ID: 54.G20.16S31.161905M30.H13.P45.17J33 Question Mark
Database Version: v52.431 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 80.81 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 284.22 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 5.137% Question Mark
Registry Population:
Scoped for This Run Only		99 (1.65%) Question Mark
$ Estimated Value (12 Month Change): 9.39% Analyzing 191 Sales Question Mark
Research Note: A few have been reported as openface.
Value Guide
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Production Metrics Tree: Grade Series 3

Target Profile: 16S-M1905-17J-HNP-A3PTI

E. Howard Watch Co. (Keystone) Grade Series 3 (All Variations): 49,390 ETP
16S: 49,390 100.00%
16s, Grade Series 3
16S-M1905: 49,390 100.00%
16s, Grade Series 3, Model 1905
16S-M1905-17J: 49,390 100.00%
16s, Grade Series 3, Model 1905, 17 Jewels
16S-M1905-17J-HNP: 26,840 54.34%
16s, Grade Series 3, Model 1905, 17 Jewels, Hunting/Pendant/Nickel 		Other: 22,550
Other Configs or Unclassified
16S-M1905-17J-HNP-A3PTI: 26,840 54.34%

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 99 watches in the population registry for this run with 5 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.

Anonymous · October 20, 2024

Serial Number 926878 was reported as accurate.

cjbrem Supporter 891 · July 3, 2024

Serial Number 921843 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever or Pendant to Pendant

Anonymous · August 17, 2023

Serial Number 925888 was reported as accurate.

jacekjot 4 · June 16, 2023

Serial Number 925948 was reported as inaccurate.

No further details were submitted with the report.

GT350me 28 · July 25, 2022

Serial Number 922278 was reported as accurate.

Anonymous · July 25, 2022

Serial Number 922278 was reported as accurate.

Anonymous · May 16, 2022

Serial Number 924067 was reported as accurate.

Anonymous · January 31, 2022

Serial Number 922572 was reported as accurate.

Anonymous · January 11, 2022

Serial Number 923774 was reported as accurate.

Anonymous · December 29, 2021

Serial Number 922572 was reported as accurate.

Anonymous · July 20, 2021

Serial Number 923959 was reported as accurate.

Anonymous · July 1, 2021

Serial Number 925388 was reported as accurate.

Anonymous · June 30, 2021

Serial Number 922202 was reported as accurate.

Anonymous · January 17, 2021

Serial Number 926686 was reported as accurate.

Anonymous · January 16, 2021

Serial Number 926774 was reported as accurate.

Anonymous · September 18, 2020

Serial Number 924027 was reported as accurate.

Bostonwatch 59 · September 3, 2020

Serial Number 925932 was reported as accurate.

Anonymous · August 30, 2020

Serial Number 922413 was reported as accurate.

Anonymous · August 16, 2020

Serial Number 923462 was reported as accurate.

Anonymous · July 24, 2020

Serial Number 926466 was reported as accurate.

Anonymous · June 2, 2020

Serial Number 921709 was reported as accurate.

Anonymous · May 1, 2020

Serial Number 921021 was reported as accurate.

Anonymous · February 21, 2020

Serial Number 922202 was reported as accurate.

Anonymous · February 8, 2020

Serial Number 926377 was reported as accurate.

Anonymous · February 2, 2020

Serial Number 926978 was reported as accurate.

Anonymous · October 18, 2019

Serial Number 924432 was reported as accurate.

Anonymous · September 6, 2019

Serial Number 924094 was reported as accurate.

Anonymous · August 2, 2019

Serial Number 926466 was reported as accurate.

Anonymous · July 26, 2019

Serial Number 926466 was reported as accurate.

Anonymous · July 9, 2019

Serial Number 925321 was reported as accurate.

Anonymous · April 21, 2019

Serial Number 921689 was reported as accurate.

Anonymous · February 9, 2019

Serial Number 921483 was reported as accurate.

Andrew9000 85 · December 13, 2018

Serial Number 924245 was reported as accurate.

E. Howard Watch Co. (Keystone) Grade Series 3 Pocket Watch