Rockford Pocket Watch: Serial Number 724160 (Grade 205)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/rockford/724160/movement

Access Date: December 28, 2024

From the American Horology Archive:

Rockford Watch Co.

Grade: 205

Winnebago

Manufacturer:	Rockford
Manufacturer Location:	Rockford, Illinois
Movement Serial Number:	724160
Grade:	205
Model:	9
Estimated Production Year:	1907
Run Quantity:	1,000
Grade/Model Run:	3 of 5
Grade/Model Total Production:	4,200
Size:	18s
Jewels:	17j
Jewel Material:	Ruby & Sapphire
Jewel Setting:	Screw-Set
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Inlay Color:	Gilt
Movement Setting:	Lever
Plate:	Full Plate
Double Roller:	Yes
Regulator:	Type 7
Hairspring:	Breguet
Escapement Type:	Straight-line
Standard Dial Type:	Double-Sunk
Adjusted:	Yes
Adjusted to Position:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Railroad Grade:	Yes
Movement Markings:	Rockford Watch Co. U.S.A. Winnebago 17 Jewels Adjusted Five Positions Double Roller
Case:	Various
Run ID:	1047.205G3.18S740.189M101.O395.L762.17J352
Data Research:	1907 Rockford Serial List
Database Version:	v52.528
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	12.64
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	129.24
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.654%
Registry Population: Scoped for This Run Only	19 (1.90%)

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Production Metrics Tree: Grade 205

Target Profile: 18S-M9-17J-ONL-A5PTI

Rockford Grade 205 (All Variations): 4,200 ETP

18S: 4,200 100.00%
18s, Grade 205

18S-M9: 4,200 100.00%
18s, Grade 205, Model 9

18S-M9-17J: 4,200 100.00%
18s, Grade 205, Model 9, 17 Jewels

18S-M9-17J-ONL: 4,200 100.00%
18s, Grade 205, Model 9, 17 Jewels, Openface/Lever/Nickel

18S-M9-17J-ONL-A5PTI: 4,200 100.00%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 19 watches in the population registry for this run with 4 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.