Pocket Watch Database

From the American Horology Archive:

Robert H. Ingersoll & Bro.

Grade: Radiolite Waterbury

Manufacturer: Robert H. Ingersoll & Bro. Question Mark
Manufacturer Location: New York, New York Question Mark
Movement Serial Number: 73974 Question Mark
Grade: Radiolite Waterbury Question Mark
Estimated Production Year: Members Only Data Question Mark
Regulator: Members Only Data Question Mark
Railroad Grade: Members Only Data Question Mark
Movement Markings: Members Only Data
Case: Various Question Mark
Database Version: v52.642 Question Mark
Registry Population:
Scoped for This Run Only
7 (0.02%) Question Mark
4 Additional Member-Only Data Points Available

The following information is unlocked with a free account:

Estimated Production Year, Regulator Type, Railroad Grade Designation, Movement Markings


Please note that many times, movements were not finished in sequential order. As a result, the production years provided are estimates, and a margin of error +/- 5 years is expected.