Pocket Watch Database

From the American Horology Archive:

Robert H. Ingersoll & Bro.

Grade: Reliance

Manufacturer: Robert H. Ingersoll & Bro.
Manufacturer Location: New York, New York
Movement Serial Number: 664821
Grade: Reliance
Model: 677
Estimated Production Date: 1917-1922
Size: 16s
Jewels: 7j
Movement Finish: Nickel
Finish Pattern: Stripe
Movement Inlay Color: None
Movement Setting: Pendant
Plate: 3/4 Plate
Balance Type: Uncut Expansion
Regulator: Plain
Hairspring: Flat
Adjusted: No
Railroad Grade: No
Movement Markings: Robt. H. Ingersoll & Bro.
U.S.A.
7 Jewels
Case: Various
Database Version: v52.221
Registry Population: 13 (0.00%)


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.