Pocket Watch Database

From the American Horology Archive:
Waltham Grade No. 20 Pocket Watch

American Waltham Watch Co.

Grade: No. 20

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 6312403 Question Mark
Grade: No. 20 Question Mark
Model: 1888 Question Mark
Estimated Production Date: January 1894 - June 1894 Question Mark
Run Quantity: 5,000 Question Mark
Grade/Model Run: 51 of 138 Question Mark
Grade/Model Total Production: 305,873 Question Mark
Size: 16s Question Mark
Jewels: 7j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Pendant Question Mark
Plate: 3/4 Plate Question Mark
Hairspring: Breguet Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 14602.G51.16S572.161888M246.O9730.P1293.7J4120 Question Mark
Data Research: c.1900 Waltham Factory Ledger Book 2 [NAWCC]
1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.560 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
444.90 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
404.67 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.442% Question Mark
Registry Population:
Scoped for This Run Only
24 (0.48%) Question Mark
$ Estimated Value (12 Month Change): -1.85% Analyzing 357 Sales Question Mark

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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.


MoatsJustin1 top-contributor 5320 · September 21, 2021

Serial Number 6311134 was reported as accurate.

Anonymous · January 12, 2021

Serial Number 6313573 was reported as accurate.

Anonymous · June 28, 2020

Serial Number 6311184 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · December 7, 2017

Serial Number 6311852 was reported as accurate.

Anonymous · September 17, 2017

Serial Number 6311780 was reported as accurate.

Anonymous · September 16, 2017

Serial Number 6311780 was reported as accurate.

Anonymous · August 19, 2015

Serial Number 6313332 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Key to Pendant

sheriff4eyes 15 · May 9, 2015

Serial Number 6312403 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Key to Pendant

sheriff4eyes 15 · April 11, 2015

Serial Number 6312403 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Key to Pendant

Anonymous · February 6, 2014

Serial Number 6313529 was reported as inaccurate.

Note: no key movement
Changes since this report was submitted:
Movement Setting changed from Key to Pendant

Anonymous · July 14, 2013

Serial Number 6311544 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Movement Setting changed from Key to Pendant
Waltham Grade No. 20 Pocket Watch