Pocket Watch Database


From the American Horology Archive:
Waltham Grade No. 640 Pocket Watch

American Waltham Watch Co.

Grade: No. 640

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 7498025 Question Mark
Grade: No. 640 Question Mark
Model: 1888 Question Mark
Estimated Production Date: October 1897 - August 1899 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 2 of 6 Question Mark
Grade/Model Total Production: 3,800 Question Mark
Size: 16s Question Mark
Jewels: 17j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Pendant Question Mark
Plate: 3/4 Plate Question Mark
Regulator: Patent Question Mark
Hairspring: Breguet Question Mark
Adjusted: Yes Question Mark
Case: Various Question Mark
Run ID: 15463.G2.16S780.161888M454.O10138.P1998.17J350 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: v52.431 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
6.02 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
5.48 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.006% Question Mark
Registry Population:
Scoped for This Run Only
12 (1.20%) 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 · September 21, 2022

Serial Number 7498900 was reported as accurate.

avpalermo Supporter 644 · October 21, 2021

Serial Number 7498278 was reported as accurate.

Anonymous · October 18, 2021

Serial Number 7498278 was reported as accurate.

Anonymous · September 20, 2020

Serial Number 7498010 was reported as accurate.

Anonymous · September 5, 2020

Serial Number 7498066 was reported as accurate.

Rdoneil 1 · May 19, 2019

Serial Number 7498025 was reported as accurate.

BaalDagon 12 · February 3, 2019

Serial Number 7498285 was reported as accurate.

Anonymous · March 17, 2018

Serial Number 7498066 was reported as accurate.

Anonymous · November 25, 2013

Serial Number 7498006 was reported as accurate.

Waltham Grade No. 640 Pocket Watch