Elgin Pocket Watch: Serial Number I52207 (Grade 571)

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/elgin/I52207

Access Date: January 29, 2023

From the American Horology Archive:

Elgin National Watch Co.

Grade: 571

B.W. Raymond

Manufacturer:	Elgin
Manufacturer Location:	Elgin, Illinois
Movement Serial Number:	I52207
Grade:	571
Model:	20
Estimated Production Year:	1955
Run Quantity:	8,000
Grade/Model Run:	3 of 26
Grade/Model Total Production:	564,000
Size:	16s
Jewels:	21j
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Lever
Plate:	3/4 Plate
Barrel:	Going
Train:	Quick
Regulator:	Ball
Adjusted:	Yes
Adjusted to Position:	Yes
Adjusted # of Positions:	6
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Total Adjustments:	9
Railroad Grade:	Yes
U.S. Patents:	77078
Case:	Various
Registry Population:	17 (0.21%)
Database Version:	v49.712

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Production Metrics Tree: Grade 571

Target Profile: 16S-M20-21J-ONL-A6PTI

Elgin Grade 571 (All Variations): 563,000 ETP

16S: 563,000 100.00%
16s, Grade 571

16S-M20: 563,000 100.00%
16s, Grade 571, Model 20

16S-M20-21J: 563,000 100.00%
16s, Grade 571, Model 20, 21 Jewels

16S-M20-21J-ONL: 563,000 100.00%
16s, Grade 571, Model 20, 21 Jewels, Openface/Lever/Nickel

16S-M20-21J-ONL-A6PTI: 563,000 100.00%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
1		I46562	#562	Collection	April 05, 2022
2	Image Credit: nightstalker638	I46915	#915	Collection	November 13, 2016
3	Image Credit: Mobilaero	I47270	#1270	Collection	November 21, 2021
4		I48286	#2286	Collection	August 09, 2021
5		I48787	#2787	Collection	July 23, 2014
6		I48801	#2801	Inferred
7		I48998	#2998	Collection	January 15, 2018
8		I49390	#3390	Collection	September 29, 2020
9		I49538	#3538	Inferred
10		I49590	#3590	Collection	May 01, 2022
11		I49697	#3697	Collection	July 11, 2021
12		I50961	#4961	Collection	August 29, 2017
13		I51483	#5483	Collection	July 14, 2015
14		I51563	#5563	Inferred
15		I51852	#5852	Collection	February 01, 2020
16	Image Credit: afterhours	I52207	#6207	Collection	August 05, 2019
17		I53628	#7628	Inferred
Standard Deviation of Known Examples: 1,973.87 (Expected: 2,309.55, Δ335.67/4.20%)

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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.

Mobilaero Top Contributor Supporter 272 · November 21, 2021

Serial Number I47270 was reported as accurate.

Mobilaero Top Contributor Supporter 272 · November 21, 2021

Serial Number I47270 was reported as accurate.

frankrus Supporter 34 · May 29, 2021

Serial Number I51104 was reported as accurate.

Anonymous · January 5, 2021

Serial Number I46369 was reported as accurate.

wmike565 Supporter 109 · December 31, 2020

Serial Number I52546 was reported as accurate.

Anonymous · November 11, 2020

Serial Number I49832 was reported as accurate.

Anonymous · August 18, 2020

Serial Number I51679 was reported as accurate.

Wmacdonald 1 · February 1, 2020

Serial Number I51852 was reported as accurate.

Anonymous · February 1, 2020

Serial Number I51852 was reported as accurate.

Anonymous · January 29, 2020

Serial Number I49635 was reported as accurate.

Anonymous · September 8, 2019

Serial Number I50248 was reported as accurate.

Anonymous · August 5, 2019

Serial Number I52207 was reported as accurate.

Anonymous · July 15, 2019

Serial Number I52966 was reported as accurate.

Anonymous · March 17, 2019

Serial Number I50002 was reported as accurate.

Anonymous · March 3, 2019

Serial Number I46459 was reported as accurate.

Anonymous · December 31, 2018

Serial Number I50002 was reported as inaccurate.

Note: adjusted # of positions 6
shows # of positions 9

Curator Response: Thanks for the report. "9 Adjustments" is not equivalent to "9 Positions." (6 Positions + Heat + Cold + Isochronism)

Anonymous · July 27, 2018

Serial Number I47984 was reported as accurate.

Anonymous · March 15, 2018

Serial Number I50002 was reported as accurate.

Anonymous · February 9, 2018

Serial Number I46615 was reported as accurate.

Anonymous · October 17, 2017

Serial Number I46789 was reported as accurate.

Anonymous · October 3, 2017

Serial Number I49055 was reported as accurate.

Anonymous · September 27, 2017

Serial Number I50818 was reported as accurate.

kroache 1 · September 2, 2017

Serial Number I50961 was reported as accurate.

Anonymous · August 29, 2017

Serial Number I50961 was reported as accurate.

Anonymous · April 10, 2017

Serial Number I52908 was reported as accurate.

rtwatches 943 · December 18, 2016

Serial Number I47859 was reported as accurate.

nightstalker638 44 · November 13, 2016

Serial Number I46915 was reported as accurate.

Anonymous · September 10, 2016

Serial Number I52908 was reported as accurate.

Anonymous · August 8, 2016

Serial Number I46915 was reported as accurate.

Anonymous · March 16, 2016

Serial Number I48853 was reported as accurate.

Anonymous · July 3, 2015

Serial Number I51814 was reported as accurate.

Anonymous · March 18, 2015

Serial Number I51484 was reported as accurate.