Pocket Watch Database

From the American Horology Archive:

American Waltham Watch Co.

Grade: A.T. & Co.

First Run of Fogg's Patent Pinion

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 175451
Grade: A.T. & Co.
Model: 1862
Estimated Production Date: June 1865 - December 1865
Run Quantity: 250
Grade/Model Run: 14 of 19
Grade/Model Total Production: 2,094
Size: 20s
Jewels: 15j
Movement Configuration: Adaptable
Movement Finish: Gilt
Movement Setting: Key
Plate: 3/4 Plate
Barrel: Going
Adjusted: Yes
Adjusted to Position: Yes
Case: Various
Run ID: 2880.G787.20S20.201862M20.O2877.K2879.15J674
Data Research: c.1900 Waltham Factory Ledger Book 1 [NAWCC]
c.1900 Waltham Factory Ledgers [Ehrhardt Transcription]
1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Database Version: v52.354
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
6.30
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
5.73
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.006%
Registry Population: 6 (2.40%)
Research Note: This is the first known run of Waltham movements fitted with Fogg's Patented Safety Pinion.

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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.


USNRet 140 · March 16, 2018

Serial Number 175454 was reported as accurate.

Anonymous · October 24, 2017

Serial Number 175559 was reported as accurate.

Anonymous · June 13, 2017

Serial Number 175485 was reported as accurate.

Anonymous · June 13, 2017

Serial Number 175485 was reported as accurate.

Anonymous · October 9, 2016

Serial Number 175503 was reported as accurate.

watchman1159 22 · March 6, 2016

Serial Number 175554 was reported as accurate.

Anonymous · July 19, 2014

Serial Number 175587 was reported as inaccurate.

No further details were submitted with the report.