Pocket Watch Database

From the American Horology Archive:
Elgin Grade 387 Pocket Watch

Elgin National Watch Co.

Grade: 387

Manufacturer: Elgin
Manufacturer Location: Elgin, Illinois
Movement Serial Number: 22609940
Grade: 387
Model: 7
Class: 110
Estimated Production Year: 1920
Run Quantity: 2,000
Grade/Model Run: 82 of 228
Grade/Model Total Production: 357,700
Variant Est. Production: 347,700 (16S-M7-17J-ONP)
Size: 16s
Jewels: 17j
Jewel Material: Ruby & Sapphire
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
Train: Quick
Regulator: Moseley
Hairspring: Breguet
Adjusted: No
Railroad Grade: No
U.S. Patents: 596407, 77078, 585025
Data Research: 1927/1950 Elgin Serial List
Case: Various
Registry Population: 10 (0.50%)
Database Version: v49.712

Production Metrics Tree: Grade 387

Target Profile: 16S-M7-17J-ONP-U

Elgin Grade 387 (All Variations): 357,700 ETP
16S: 357,700 100.00%
16s, Grade 387
16S-M7: 357,700 100.00%
16s, Grade 387, Model 7
16S-M7-17J: 357,700 100.00%
16s, Grade 387, Model 7, 17 Jewels
16S-M7-17J-ONP: 347,700 97.20%
16s, Grade 387, Model 7, 17 Jewels, Openface/Pendant/Nickel
Other: 10,000
Other Configs or Unclassified
16S-M7-17J-ONP-U: 347,700 97.20%

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 22609031 #31 Marketplace June 22, 2022
2 22609139 #139 Marketplace April 16, 2014
3 22609180 #180 Marketplace November 05, 2014
4 22609400 #400 Marketplace October 13, 2015
5 22609666 #666 Marketplace March 03, 2018
6 22609673 #673 Marketplace January 12, 2014
7
Image Credit: afilter
22609940 #940 Collection January 03, 2023
8 22610051 #1051 Marketplace April 28, 2013
9 22610122 #1122 Marketplace May 07, 2020
10 22610924 #1924 Marketplace March 24, 2022
Standard Deviation of Known Examples: 575.43 (Expected: 577.49, Δ2.07/0.10%)

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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.


Rcardkidz 2787 · January 18, 2023

Serial Number 22610464 was reported as accurate.

23Greenwich Supporter 158 · October 31, 2022

Serial Number 22609940 was reported as accurate.

Anonymous · March 24, 2021

Serial Number 22609531 was reported as accurate.

Anonymous · September 8, 2015

Serial Number 22610635 was reported as accurate.

Anonymous · March 20, 2015

Serial Number 22609400 was reported as accurate.

Anonymous · August 21, 2014

Serial Number 22610768 was reported as accurate.

Anonymous · February 10, 2013

Serial Number 22610783 was reported as accurate.

Anonymous · January 25, 2013

Serial Number 22609928 was reported as accurate.

Anonymous · October 3, 2012

Serial Number 22609151 was reported as accurate.

Elgin Grade 387 Pocket Watch