Re: Gruen 117-123 [message #3468 is a reply to message #3467] |
Tue, 01 April 2014 23:52 |
mikey
Messages: 709 Registered: May 2013 Location: Paris, Ontario
|
Gruen Master |
|
|
This info from the 1939 Material catalogue: #117, #119, #123: all movements have two different balance staffs, with .40 & .60 hairspring shoulders/ That info is repeated in the 1948 catalogue.
And this from the 1945 catalogue: #115, #1157, #117, #119 (40 & 60 collet) is interchangeable with the #123. That same info is shown in the 1945 supplement.
Still here....
|
|
|