Rockford Pocket Watch: Serial Number 350477 (Grade 70)

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/rockford/350477

Access Date: April 19, 2024

From the American Horology Archive:

Rockford Watch Co.

Grade: 70

Manufacturer:	Rockford
Manufacturer Location:	Rockford, Illinois
Movement Serial Number:	350477
Grade:	70
Model:	8
Estimated Production Year:	1890
Run Quantity:	500
Grade/Model Run:	4 of 4
Grade/Model Total Production:	1,600
Size:	18s
Jewels:	16j
Jewel Setting:	Gold Settings (Screw-Set)
Movement Configuration:	Hunting
Movement Finish:	Two-Tone
Movement Signing Style:	Old English
Movement Inlay Color:	None
Movement Setting:	Lever
Plate:	Full Plate
Regulator:	Micrometer
Hairspring:	Breguet
Escapement Type:	Straight-line
Standard Dial Type:	Double-Sunk
Adjusted:	Yes
Adjusted to Position:	Yes
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Movement Markings:	R.W.Co. Rockford, Ill. Adjusted
Data Research:	1907 Rockford Serial List
Case:	Various
Run ID:	335.70G4.18S333.188M81.H161.L198.16J8
Database Version:	v52.235
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	4.81
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	49.22
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.249%
Registry Population:	5 (1.00%)

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Production Metrics Tree: Grade 70

Target Profile: 18S-M8-16J-HTL-APTI

Rockford Grade 70 (All Variations): 1,600 ETP

18S: 1,600 100.00%
18s, Grade 70

18S-M8: 1,600 100.00%
18s, Grade 70, Model 8

18S-M8-16J: 1,600 100.00%
18s, Grade 70, Model 8, 16 Jewels

18S-M8-16J-HTL: 1,600 100.00%
18s, Grade 70, Model 8, 16 Jewels, Hunting/Lever/Two-Tone

18S-M8-16J-HTL-APTI: 1,600 100.00%

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.

Anonymous · January 5, 2024

Serial Number 350008 was reported as inaccurate.

Note: SN 350008 is a two tone, 21 jewel, Model 8, Grade
70. 25 were made on a by request basis.

Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.