Pocket Watch Database


From the American Horology Archive:

American Waltham Watch Co.

Grade: No. 665

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 27558109 Question Mark
Grade: No. 665 Question Mark
Model: L-6.5 Question Mark
Estimated Production Year: 1931 Question Mark
Run Quantity: 20,000 Question Mark
Grade/Model Run: 14 of 30 Question Mark
Grade/Model Total Production: 369,301 Question Mark
Size: 6.5L Question Mark
Jewels: 15j Question Mark
Movement Configuration: Openface Question Mark
Movement Setting: Pendant Question Mark
Hairspring: Breguet Question Mark
Adjusted: Yes Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 25427.G14.S27.M27.O15754.P10363.15J6038 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.473 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
1,111.88 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1,011.81 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.105% Question Mark
Registry Population:
Scoped for This Run Only
1 (0.01%) 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.


MoatsJustin1 top-contributor 5269 · April 25, 2024

Serial Number 27548030 was reported as accurate.

Anonymous · August 9, 2022

Serial Number 27545400 was reported as accurate.

MoatsJustin1 top-contributor 5269 · September 1, 2021

Serial Number 27549283 was reported as accurate.

Anonymous · September 8, 2019

Serial Number 27557173 was reported as accurate.

rtwatches 943 · January 2, 2018

Serial Number 27547761 was reported as inaccurate.

Note: This is an oval movement, approximately 15mm x 25
mm across the dial plate. The movement and watch
pictured with this post looks like a 12s OF
pocket watch. Every other reference to the
Waltham 665 resembles the movement I have here.
Curator Response: That image was uploaded as a contribution from another user. The serial number had been entered incorrectly.