Elgin Pocket Watch: Serial Number 21275949 (Grade 315)

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/elgin/21275949

Access Date: March 27, 2023

From the American Horology Archive:

Elgin National Watch Co.

Grade: 315

Manufacturer:	Elgin
Manufacturer Location:	Elgin, Illinois
Movement Serial Number:	21275949
Grade:	315
Model:	3
Class:	114
Estimated Production Year:	1919
Run Quantity:	2,000
Grade/Model Run:	162 of 329
Grade/Model Total Production:	1,033,900
Size:	12s
Jewels:	15j
Jewel Setting:	Screw-Set
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Pendant
Plate:	3/4 Plate
Double Roller:	Yes
Barrel:	Going
Balance Type:	Expansion
Balance Jewel Material:	Ruby
Train:	Quick
Regulator:	Moseley
Hairspring:	Breguet
Standard Dial Type:	Single-Sunk
Adjusted:	No
Railroad Grade:	No
U.S. Patents:	596407, 77078, 585025
Data Research:	1927/1950 Elgin Serial List
Case:	Various
Database Version:	v50.358
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	3,004.73
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	1,202.85
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	2.046%
Registry Population:	8 (0.40%)

Value Guide

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Production Metrics Tree: Grade 315

Target Profile: 12S-M3-15J-ONP-U

Elgin Grade 315 (All Variations): 1,033,900 ETP

12S: 1,033,900 100.00%
12s, Grade 315

12S-M3: 1,033,900 100.00%
12s, Grade 315, Model 3

12S-M3-15J: 1,033,900 100.00%
12s, Grade 315, Model 3, 15 Jewels

12S-M3-15J-ONP: 1,033,900 100.00%
12s, Grade 315, Model 3, 15 Jewels, Openface/Pendant/Nickel

12S-M3-15J-ONP-U: 1,033,900 100.00%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
1		21274058	#58	Marketplace	June 28, 2020
2	Image Credit: ncmcgrew	21274384	#384	Collection	May 17, 2022
3		21274643	#643	Marketplace	January 21, 2013
4		21274677	#677	Marketplace	March 04, 2016
5		21274951	#951	Collection	August 31, 2019
6		21275165	#1165	Marketplace	October 22, 2017
7		21275245	#1245	Marketplace	October 19, 2013
8	Image Credit: shaunleatham	21275949	#1949	Collection	January 29, 2019
Standard Deviation of Known Examples: 583.24 (Expected: 577.49, Δ5.75/0.29%)

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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.