| Cal 450 [message #11275] |
Sun, 06 October 2019 16:33  |
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JackW
Messages: 1931
Registered: May 2013
Location: Denver
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With thojil's post featuring what is likely Thieboud's prototype for the 1-button chronograph that Gruen produced, I thought the cal 450 should be in the database.
http://vintagegruen.org/vgforum/index.php?t=msg&th=1656& amp; amp;start=0&
Incidentally, I think thojil shouldn't be allowed any more of these:
http://vintagegruen.org/vgforum/index.php?t=msg&goto=239 &&srch=450#msg_239
I think though from thojil's watches, that it is plainly obvious that the 450 is developed in house. The prototype actually supports what is written in Pynson and Chaulmontet's Chronographs for Collectors. The 450 is not on Ranfft's site.
So here is the loose 450 that was on the swamp recently:
I also intend to figure out the disassembly of this watch. There is no technical information on the watch that I have been able to find.
All I know is based on hard work & writing by others. I can only aspire to augment this body of knowledge. If I am wrong it is because of my own failings. -me
"If I have seen farther it is by standing on the shoulders of giants." - Newton
[Updated on: Sun, 06 October 2019 16:33] Report message to a moderator |
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