E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 1284624 (Grade Series 2)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1284624

Access Date: December 30, 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 2

Manufacturer:	E. Howard Watch Co. (Keystone)
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	1284624
Grade:	Series 2
Model:	1907
Estimated Production Year:	1922
Run Quantity:	1,000
Grade/Model Run:	4 of 6
Grade/Model Total Production:	6,500
Variant Est. Production:	1,500 (16S-M1907-17J-ONP)
Size:	16s
Jewels:	17j
Jewel Material:	Ruby & Sapphire
Jewel Setting:	Burnished Jewels
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Pendant
Plate:	Bridge Plate
Bridge Type:	Center
Double Roller:	Yes
Barrel:	Going
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. [Empty Circle in Arrow] 17 Jewels Pat'd '08
Case:	Various
Run ID:	300.G16.16S189.161907M80.O214.P211.17J139
Database Version:	v52.528
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	16.56
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	58.16
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	1.052%
Registry Population: Scoped for This Run Only	2 (0.20%)
Research Note: White Alloy Train. #1284001: Case inscribed 1922.

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Production Metrics Tree: Grade Series 2

Target Profile: 16S-M1907-17J-ONP-A5PTI

E. Howard Watch Co. (Keystone) Grade Series 2 (All Variations): 11,250 ETP
16S: 11,250 100.00% 16s, Grade Series 2
16S-M1907: 6,500 57.78% 16s, Grade Series 2, Model 1907		Other: 4,750 Other Models or Unclassified
16S-M1907-17J: 6,500 57.78% 16s, Grade Series 2, Model 1907, 17 Jewels
16S-M1907-17J-ONP: 1,500 13.33% 16s, Grade Series 2, Model 1907, 17 Jewels, Openface/Pendant/Nickel	Other: 5,000 Other Configs or Unclassified
16S-M1907-17J-ONP-A5PTI: 1,500 13.33%

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 2 images. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

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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.

rmwatchandclock Supporter 377 · June 29, 2024

Serial Number 1284001 was reported as accurate.

Anonymous · September 23, 2023

Serial Number 1284395 was reported as accurate.

Anonymous · August 12, 2023

Serial Number 1284489 was reported as accurate.

Anonymous · December 25, 2022

Serial Number 1284051 was reported as accurate.

Anonymous · January 15, 2020

Serial Number 1284156 was reported as inaccurate.

Note: A series 2 bridge model movement, 5 position watch
would be lever set , not pendant set.

On the other hand , if pendant set it would be a
3 position movement

Curator Response: Thanks for the report. The Series 2 was advertised as adjusted to five positions - both pendant-set and lever-set. https://pocketwatchdatabase.com/guide/company/e.-howard-watch-co.-keystone/catalogs/the-howard-watch-catalog-1914/16

Anonymous · May 22, 2019

Serial Number 1284121 was reported as accurate.

Anonymous · February 17, 2019

Serial Number 1284150 was reported as inaccurate.

Note: The Howard 17J, series 2 bridge models were three
position watches. The lever set models were 5
position models and could be used for RR service.
The data supplied is not accurate. A correction is
needed. As it is unknown if Howard published a
serial number / model listing, where did this data
originate

Curator Response: This is incorrect. The Series 2 Model 1907 (Bridge) is advertised as featuring a "close five-position adjustment" with no distinction between lever-set and pendant-set. This is described in both the 1914 and 1918 Howard catalogs. Additionally, the movements are marked "Five Positions" on the pillar plate. The serial list has been reconstructed using hundreds of observations.