E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 1304573 (Grade Series 6)

Save to My Collection Print Page Find a Mainspring Find a Balance Staff

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.

E. Howard Series 6, Size 12 & Jewels 19 Pocketwatch

Check Price Source: eBay.com

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1304573

Access Date: November 15, 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 6

Manufacturer:	E. Howard Watch Co. (Keystone)
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	1304573
Grade:	Series 6
Model:	1912
Estimated Production Year:	1916
Run Quantity:	5,000
Grade/Model Run:	10 of 10
Grade/Model Total Production:	13,000
Size:	12s
Jewels:	19j
Jewel Setting:	Burnished Jewels
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Pendant
Plate:	Bridge Plate
Double Roller:	Yes
Regulator:	Micrometric
Hairspring:	Breguet
Standard Dial Type:	Single-Sunk
Adjusted:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Railroad Grade:	No
Movement Markings:	E. Howard Watch Co. Boston U.S.A. 19 Jewels [Triangle in Arrow] Pat'd '12 Adjustment Five Positions And Temperature
Case:	Various
Run ID:	305.G19.12S79.121912M34.O218.P215.19J50
Database Version:	v52.433
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	39.14
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	137.61
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	2.488%
Registry Population: Scoped for This Run Only	11 (0.22%)

Value Guide

What is My Watch Worth?

Have a Question?

Ask the experts in The Pocket Watch Group

Production Metrics Tree: Grade Series 6

Target Profile: 12S-M1912-19J-ONP-A5PT

E. Howard Watch Co. (Keystone) Grade Series 6 (All Variations): 19,700 ETP
12S: 19,700 100.00% 12s, Grade Series 6
12S-M1912: 13,000 65.99% 12s, Grade Series 6, Model 1912	Other: 6,700 Other Models or Unclassified
12S-M1912-19J: 13,000 65.99% 12s, Grade Series 6, Model 1912, 19 Jewels
12S-M1912-19J-ONP: 13,000 65.99% 12s, Grade Series 6, Model 1912, 19 Jewels, Openface/Pendant/Nickel
12S-M1912-19J-ONP-A5PT: 13,000 65.99%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 11 watches in the population registry for this run with 6 images. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Yes

Why Might This Information Be Incorrect?

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 · August 3, 2024

Serial Number 1307511 was reported as accurate.

GammaSky 4 · July 16, 2024

Serial Number 1306196 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · July 15, 2024

Serial Number 1306196 was reported as inaccurate.

Note: Marked "17 Jewels", "3 Pos". Arrow with circle --
no triangle. The only capped jewel is the
balance, so it does appear to be 17 jewels. The
series seems to be mixed.