Rockford Pocket Watch: Serial Number 405531 (Grade 83)

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1888 Rockford Grade 83 M-8 15j 18s Pocket Watch Century Swing out Works w/Chain

Check Price Source: eBay.com

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/rockford/405531

Access Date: May 02, 2025

From the American Horology Archive:

Rockford Watch Co.

Grade: 83

Manufacturer:	Rockford
Manufacturer Location:	Rockford, Illinois
Movement Serial Number:	405531
Grade:	83
Model:	8
Estimated Production Year:	Login to View
Run Quantity:	Login to View
Grade/Model Run:	Login to View
Grade/Model Total Production:	Login to View
Variant Est. Production:	Login to View
Size:	18s
Jewels:	15j
Jewel Setting:	Login to View
Movement Configuration:	Hunting
Movement Finish:	Nickel
Movement Inlay Color:	Login to View
Movement Setting:	Lever
Wind Mechanism:	Stem
Plate:	Full Plate
Regulator:	Login to View
Hairspring:	Login to View
Escapement Type:	Straight-line
Adjusted:	Login to View
Movement Markings:	Login to View
Case:	Various
Run ID:	434.83G23.18S370.188M93.H237.L297.15J179
Data Research:	1907 Rockford Serial List
Database Version:	v52.642
Advanced Metrics
Members Only Data. Login or create a free account to unlock.
Registry Population: Scoped for This Run Only	5 (1.00%)
Research Note: Rockford serial lists designate this run as Grade 83. However, #405531 has been verified as marked "17 J" and "Adjusted," inconsistent with other standard Grade 83 movements and is more consistent with the Grade 82 designation. Rockford offered the Grade 83 with an optional factory adjustment, described as the Grade "83x" in original advertisements.

11 Additional Member-Only Data Points Available

The following information is unlocked with a free account:

Estimated Production Year, Run Quantity, Grade/Model Run, Grade/Model Total Production, Variant Est. Production, Jewel Setting, Movement Inlay Color, Regulator Type, Hairspring, Adjustments, Movement Markings

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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 5 watches in the population registry for this run with 2 images. 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.