Elgin Pocket Watch: Serial Number 7875611 (Grade 150)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/elgin/7875611

Access Date: December 19, 2024

From the American Horology Archive:

Elgin National Watch Co.

Grade: 150

Mixed Run: Pendant-Set and Lever-Set Movement (See Notes)

Manufacturer:	Elgin
Manufacturer Location:	Elgin, Illinois
Movement Serial Number:	7875611
Grade:	150
Model:	5
Class:	7
Estimated Production Year:	1899
Run Quantity:	269
Grade/Model Run:	7 of 23
Grade/Model Total Production:	7,820
Variant Est. Production:	6,820 (18S-M5-21J)
Size:	18s
Jewels:	21j
Jewel Material:	Ruby
Jewel Setting:	Gold Settings (Screw-Set)
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Inlay Color:	Gilt
Movement Setting:	Pendant Mixed Run
Plate:	Full Plate
Barrel:	Going
Train:	Quick
Regulator:	Moseley
Hairspring:	Breguet
Standard Dial Type:	Double-Sunk
Adjusted:	Yes
Adjusted to Position:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Adjustment Tolerance:	[14] 3P +/- 10 s/24hrs., Temp. +/- 4 s/16hrs., Reg. +/- 0-2 s/24hrs.
Railroad Grade:	Yes
Railroad Grade Classification:	Class C
U.S. Patents:	77078, 347272, 345619
Case:	Various
Run ID:	3106.150G7.18S1666.185M517.O726.P1262.21J29
Data Research:	1904 Elgin Serial List 1915 Elgin Serial List 1927/1950 Elgin Serial List
Database Version:	v52.515
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	23.54
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	9.04
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.015%
Registry Population: Scoped for This Run Only	3 (1.12%)
Research Note: Run 7875001-7876000 started as Grade 150 (Pendant-Set). According to the master records, several movements were changed from Pendant-Set to Lever-Set (Grade 277). These are dispersed throughout the original range. #7875793: Verified as Lever-Set.

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Production Metrics Tree: Grade 150

Target Profile: 18S-M5-21J-ONP-A5PTI

Elgin Grade 150 (All Variations): 7,820 ETP
18S: 7,820 100.00% 18s, Grade 150
18S-M5: 7,820 100.00% 18s, Grade 150, Model 5
18S-M5-21J: 6,820 87.21% 18s, Grade 150, Model 5, 21 Jewels	Other: 1,000 Other Jewels or Unclassified
18S-M5-21J-ONP: 6,820 87.21% 18s, Grade 150, Model 5, 21 Jewels, Openface/Pendant/Nickel
18S-M5-21J-ONP-A5PTI: 6,820 87.21%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 3 watches in the population registry for this run with 1 image. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

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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.