Pocket Watch Database

From the American Horology Archive:

American Waltham Watch Co.

Grade: No. 300

(Alternatively Grade No. 310)

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 20506720
Grade: No. 300
Model: 1900
Estimated Production Year: 1916
Run Quantity: 4,000
Grade/Model Run: 5 of 6
Grade/Model Total Production: 24,500
Size: 3/0s
Jewels: 7j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: 3/4 Plate
Hairspring: Breguet
Adjusted: No
Railroad Grade: No
Case: Various
Run ID: 23205.G5.S121.M70.O14423.P8303.7J6761
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Database Version: v52.289
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
73.76
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
67.12
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.073%
Registry Population: 3 (0.08%)

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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 · March 21, 2021

Serial Number 20507220 was reported as accurate.

rtwatches 943 · July 3, 2018

Serial Number 20508654 was reported as accurate.

Anonymous · February 14, 2018

Serial Number 20508025 was reported as accurate.

Anonymous · August 26, 2014

Serial Number 20506607 was reported as accurate.

Anonymous · April 24, 2013

Serial Number 20506720 was reported as accurate.