Pocket Watch Database

From the American Horology Archive:
Waltham Grade No. 621 Pocket Watch

American Waltham Watch Co.

Grade: No. 621

Private Label(s) in Run:

Preston Junior

What is a Private Label?
Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 22323955 Question Mark
Grade: No. 621 Question Mark
Model: 1908 Question Mark
Estimated Production Year: 1918 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 1 of 2 Question Mark
Grade/Model Total Production: 750 Question Mark
Size: 16s Question Mark
Jewels: 15j Question Mark
Movement Configuration: Hunting Question Mark
Movement Setting: Pendant Question Mark
Plate: Bridge Plate Question Mark
Regulator: Church 1892 Question Mark
Hairspring: Breguet Question Mark
Adjusted: Yes Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 24132.G1.16S3562.161908M1115.H8201.P9153.15J5657 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.621 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
1.50 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.37 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.001% Question Mark
Registry Population:
Scoped for This Run Only
4 (0.80%) 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.


Anonymous · October 31, 2022

Serial Number 22323928 was reported as accurate.

Anonymous · October 20, 2022

Serial Number 22323804 was reported as accurate.

Anonymous · July 4, 2022

Serial Number 22323974 was reported as accurate.

Anonymous · March 18, 2017

Serial Number 22323990 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · March 27, 2016

Serial Number 22323650 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · December 31, 2015

Serial Number 22323747 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · September 18, 2015

Serial Number 22323501 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · December 20, 2014

Serial Number 22323969 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

TheAdmiral 94 · January 12, 2014

Serial Number 22323955 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · November 19, 2013

Serial Number 22323511 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Waltham Grade No. 621 Pocket Watch