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: 7511556 Question Mark
Grade: No. 20 Question Mark
Model: 1888 Question Mark
Estimated Production Date: May 1897 - August 1898 Question Mark
Run Quantity: 2,000 Question Mark
Grade/Model Run: 108 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: 15481.G108.16S789.161888M463.O10149.P2015.7J4381 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: v52.526 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
444.70 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
9 (0.45%) Question Mark
$ Estimated Value (12 Month Change): -1.87% Analyzing 355 Sales Question Mark

Help Us Help Others By Improving the Database:

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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 · February 6, 2022

Serial Number 7511530 was reported as accurate.

Anonymous · April 24, 2020

Serial Number 7511525 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · April 24, 2020

Serial Number 7511525 was reported as accurate.

pwdmbj Supporter 558 · March 27, 2020

Serial Number 7511556 was reported as accurate.

Anonymous · January 30, 2020

Serial Number 7511543 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · December 21, 2019

Serial Number 7511968 was reported as accurate.

Anonymous · November 9, 2019

Serial Number 7512652 was reported as accurate.

trj1984 1 · August 4, 2017

Serial Number 7511946 was reported as accurate.

Jas3458 2 · January 23, 2016

Serial Number 7512599 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Gilt or Nickel to Gilt

Anonymous · June 3, 2015

Serial Number 7511330 was reported as accurate.

Anonymous · May 29, 2015

Serial Number 7511330 was reported as accurate.

Anonymous · January 8, 2015

Serial Number 7511050 was reported as accurate.

Anonymous · April 23, 2014

Serial Number 7512177 was reported as accurate.

Waltham Grade No. 20 Pocket Watch