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Need help identifying D & S Co. mark on old Rolex movement "Click" to Login or Register 
IHC Life Member
posted
This is a 10.5 ligne Rebberg Rolex movement from the teens or early 20's. It has an unusual company logo on the front of the movement. Any of you wrist watch experts have any idea of what company this represents? Thanks! Smile

 
Posts: 718 | Location: Upstate New York in the USA | Registered: November 21, 2008
IHC Life Member
posted
This is an overall shot of the movement.

 
Posts: 718 | Location: Upstate New York in the USA | Registered: November 21, 2008
Picture of Peter Kaszubski
posted
It might have been the importer mark or the jewler
that was selling those watches but that is my one cent.
 
Posts: 4395 | Location: Arizona in the USA | Registered: July 23, 2011
IHC Life Member
posted
Peter, I'm pretty sure it was a jeweler and was hoping it may have been a prominent establishment in either England, Australia, Canada, or India. From my studies, it appears that they were the main markets during the early years of Rolex production.
 
Posts: 718 | Location: Upstate New York in the USA | Registered: November 21, 2008
posted
This is a monogram DG&S for Dietrich Gruen and Sons as often seen on watch movements marked Watch Specialties Co. Gruen and Rolex were both using Aegler movements at this time. (Rolex eventually took ownership of the Aegler factory.) I'm thinking one of the bridges may have been switched which is easily done as they are interchangeable.
 
Posts: 653 | Location: St Paul, Minnesota in the USA | Registered: May 04, 2004
IHC Life Member
posted
William, thanks for the information. Very interesting!
 
Posts: 718 | Location: Upstate New York in the USA | Registered: November 21, 2008
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