Elgin Pocket Watch: Serial Number 20828527 (Grade 336)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/elgin/20828527/movement

Access Date: November 01, 2024

From the American Horology Archive:

Elgin National Watch Co.

Grade: 336

Manufacturer:	Elgin
Manufacturer Location:	Elgin, Illinois
Movement Serial Number:	20828527
Grade:	336
Model:	5
Class:	106
Estimated Production Year:	1918
Run Quantity:	1,000
Grade/Model Run:	150 of 192
Grade/Model Total Production:	272,700
Variant Est. Production:	271,700 (18S-M5-17J-ONP)
Size:	18s
Jewels:	17j
Jewel Material:	Ruby & Sapphire
Jewel Setting:	Screw-Set
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Pendant
Plate:	Full Plate
Barrel:	Going
Balance Type:	Expansion
Train:	Quick
Regulator:	Moseley
Hairspring:	Breguet
Adjusted:	No
Railroad Grade:	No
U.S. Patents:	77078, 347272, 345619
Case:	Various
Run ID:	10450.336G150.18S3450.185M1523.O4284.P7668.17J1506
Data Research:	1927/1950 Elgin Serial List
Database Version:	v52.428
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	821.04
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	317.22
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.539%
Registry Population: Scoped for This Run Only	5 (0.50%)
$ Estimated Value (12 Month Change):	6.17% Analyzing 936 Sales

Value Guide

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Production Metrics Tree: Grade 336

Target Profile: 18S-M5-17J-ONP-U

Elgin Grade 336 (All Variations): 272,700 ETP
18S: 272,700 100.00% 18s, Grade 336
18S-M5: 272,700 100.00% 18s, Grade 336, Model 5
18S-M5-17J: 272,700 100.00% 18s, Grade 336, Model 5, 17 Jewels
18S-M5-17J-ONP: 271,700 99.63% 18s, Grade 336, Model 5, 17 Jewels, Openface/Pendant/Nickel	Other: 1,000 Other Configs or Unclassified
18S-M5-17J-ONP-U: 271,700 99.63%

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.