E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 974238 (Grade Series 2)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/974238

Access Date: December 24, 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:	974238
Grade:	Series 2
Variation:	No. 2
Model:	1905
Estimated Production Year:	1908
Run Quantity:	100
Grade/Model Run:	11 of 12
Grade/Model Total Production:	4,750
Variant Est. Production:	300 (16S-M1905-17J-ONL-A5PTI-NO. 2)
Size:	16s
Jewels:	17j
Jewel Material:	Ruby & Sapphire
Jewel Setting:	Gold Settings (Screw-Set)
Movement Configuration:	Openface
Movement Finish:	Nickel
Finish Pattern:	Wide Stripe
Movement Setting:	Lever
Plate:	3/4 Plate
Double Roller:	Yes
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:	Yes
Dial Feet Locations:	10.7, 24.3, 48.9
U.S. Patents:	781263, 796162, 886387, 900183, 992013, 971496, 978612, 981667
Movement Markings:	E. Howard Watch Co. Boston U.S.A. No. 2 Adjusted 5 Pos. 17 Jewels Pat'd '05
Case:	Various
Run ID:	114.G11.16S91.161905M81.O66.L6.17J84
Database Version:	v52.526
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	7.37
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	25.85
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.469%
Registry Population: Scoped for This Run Only	2 (2.00%)
Research Note: #974238: Verified as Marked "No. 2" with Parallel Pattern

Value Guide

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Production Metrics Tree: Grade Series 2

Target Profile: 16S-M1905-17J-ONL-A5PTI-NO. 2

E. Howard Watch Co. (Keystone) Grade Series 2 (All Variations): 11,250 ETP
16S: 11,250 100.00% 16s, Grade Series 2
16S-M1905: 4,750 42.22% 16s, Grade Series 2, Model 1905			Other: 6,500 Other Models or Unclassified
16S-M1905-17J: 4,750 42.22% 16s, Grade Series 2, Model 1905, 17 Jewels
16S-M1905-17J-ONL: 800 7.11% 16s, Grade Series 2, Model 1905, 17 Jewels, Openface/Lever/Nickel		Other: 3,950 Other Configs or Unclassified
16S-M1905-17J-ONL-A5PTI: 800 7.11%
16S-M1905-17J-ONL-A5PTI-NO. 2: 300 2.67%	Other: 500 Other Variants or Unclassified

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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