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Hamilton quality - The 10/12 sizes. "Click" to Login or Register 
Picture of Matthew E. Sutton
posted July 28, 2005 21:25
...So the 918 was manufactured after the 920 and 922? Did the 918 have the elinvar hairspring? (1941).
 
Picture of Jerry Treiman
posted July 29, 2005 03:04
The 918 was after the 920. Production began a few years after the 922 but then was roughly concurrent. I do not recall ever seeing one with an elinvar hairspring.
 
Picture of Matthew E. Sutton
posted August 09, 2005 23:19
Here is a 918 since the image at the top has expired.

 
Picture of Matthew E. Sutton
posted August 09, 2005 23:22
Stem view (The case was open in the back, so a gap appears)

 
Picture of Matthew E. Sutton
posted August 09, 2005 23:26
Front view

 
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