E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 1283248 (Grade Series 11)

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HOWARD 21J. 1918 16S POCKET WATCH RAILROAD CHRONOMETER SERIES 11 EXCELLENT

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c. 1910 E. HOWARD WATCH CO. RR 21J ADJ. 5 POS. SERIES 11 - 53MM - WORKING - BO

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1283248

Access Date: January 02, 2025

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 11

Manufacturer:	E. Howard Watch Co. (Keystone)
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	1283248
Grade:	Series 11
Variation:	DR.RecoilClick
Model:	E
Estimated Production Year:	1915
Run Quantity:	1,000
Grade/Model Run:	4 of 12
Grade/Model Total Production:	25,100
Variant Est. Production:	6,000 (16S-ME-21J-ONL-A5PTI-DR.RECOILCLICK)
Size:	16s
Jewels:	21j
Jewel Setting:	Burnished Jewels
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Lever
Plate:	Bridge Plate
Double Roller:	Yes
Regulator:	Micrometric
Hairspring:	Breguet
Standard Dial Type:	Single-Sunk
Adjusted:	Yes
Adjusted to Position:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Railroad Grade:	Yes
Railroad Grade Classification:	Class A
Movement Markings:	E. Howard Watch Co. Boston U.S.A. Railroad Chronometer Series 11 21 Jewels R.R. Adjustment Temperature Five Positions Pat'd '08 Double Roller
Case:	Various
Run ID:	299.G4.16S188.M4.O213.L61.21J46
Database Version:	v52.534
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	75.57
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	265.78
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	4.801%
Registry Population: Scoped for This Run Only	3 (0.30%)
$ Estimated Value (12 Month Change):	-1.43% Analyzing 208 Sales

Value Guide

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Production Metrics Tree: Grade Series 11

Target Profile: 16S-ME-21J-ONL-A5PTI-DR.RECOILCLICK

E. Howard Watch Co. (Keystone) Grade Series 11 (All Variations): 25,100 ETP
16S: 25,100 100.00% 16s, Grade Series 11
16S-ME: 25,100 100.00% 16s, Grade Series 11, Model E
16S-ME-21J: 25,100 100.00% 16s, Grade Series 11, Model E, 21 Jewels
16S-ME-21J-ONL: 25,100 100.00% 16s, Grade Series 11, Model E, 21 Jewels, Openface/Lever/Nickel
16S-ME-21J-ONL-A5PTI: 25,100 100.00%
16S-ME-21J-ONL-A5PTI-DR.RECOILCLICK: 6,000 23.90%	Other: 19,100 Other Variants or Unclassified

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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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.