Rockford Pocket Watch: Serial Number 880855 (Grade 938)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/rockford/880855/movement

Access Date: April 18, 2024

From the American Horology Archive:

Rockford Watch Co.

Grade: 938

Manufacturer:	Rockford
Manufacturer Location:	Rockford, Illinois
Movement Serial Number:	880855
Grade:	938
Model:	9
Estimated Production Year:	1912
Run Quantity:	200
Grade/Model Run:	10 of 10
Grade/Model Total Production:	7,200
Size:	18s
Jewels:	17j
Movement Configuration:	Openface
Movement Finish:	Two-Tone
Movement Setting:	Lever
Plate:	Full Plate
Data Research:	1907 Rockford Serial List
Case:	Various
Run ID:	1263.938G10.18S796.189M144.O521.L830.17J488
Database Version:	v52.235
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	21.67
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	221.58
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	1.121%
Registry Population:	2 (1.00%)
Research Note: Run 880001-881000 was originally designated by researchers as Grade 938 (no factory serial lists exist for this run). However, #880642 has been confirmed to be marked "Adjusted" and features a damaskeening pattern consistent with Grade 925. #880133 and #880855 have been verified as Grade 938. Therefore, this run has been split as follows until futher evidence is discovered: 880001-880500 = 938; 880501-880800 = 925; 880801-881000 = 938.

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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.