Waltham Pocket Watch: Serial Number 20157507 (Grade Royal)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/waltham/20157507/link

Access Date: December 26, 2024

From the American Horology Archive:

American Waltham Watch Co.

Grade: Royal

Manufacturer:	Waltham
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	20157507
Grade:	Royal
Model:	1908
Estimated Production Year:	1915
Run Quantity:	500
Grade/Model Run:	15 of 35
Grade/Model Total Production:	23,800
Size:	16s
Jewels:	17j
Jewel Setting:	Gold Settings (Screw-Set)
Movement Configuration:	Openface
Movement Setting:	Pendant
Plate:	Bridge Plate
Balance Type:	Compensation
Regulator:	Patent
Hairspring:	Breguet
Adjusted:	Yes
Railroad Grade:	No
Case:	Various
Run ID:	23009.G712.16S3222.161908M791.O14296.P8114.17J2353
Data Research:	1954 Waltham "Gray Book" List NAWCC Waltham Serial Digest
Database Version:	v52.526
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	46.66
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	42.46
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.046%
Registry Population: Scoped for This Run Only	6 (1.20%)

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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.