| Cal 450 [message #11275] |
Sun, 06 October 2019 16:33  |
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JackW
Messages: 1872
Registered: May 2013
Location: Denver
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Gruen Authority
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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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| Re: Cal 450 [message #11276 is a reply to message #11275] |
Sun, 06 October 2019 16:45  |
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timeliz
Messages: 602
Registered: May 2013
Location: Northern California
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Gruen Master |
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Nice score, Jack!
Keep checking ebay for a dial. I know I saw someone selling one.
"Some days are diamonds, some days are stones..." -John Denver
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| Re: Cal 450 [message #11285 is a reply to message #11275] |
Sun, 06 October 2019 22:57 |
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Ephemerald
Messages: 1039
Registered: October 2018
Location: City of Lake Salt
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Gruen Authority |
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There is *some* technical information for 450 in Gruen Catalog 545.
Matthias
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| Re: Cal 450 [message #11365 is a reply to message #11294] |
Sat, 12 October 2019 17:09 |
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Ephemerald
Messages: 1039
Registered: October 2018
Location: City of Lake Salt
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Gruen Authority |
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No, that's not what I meant exactly Jack but close. Mine shows the same movement but w parts & says.
"This model has no detent screw. To remove stem simply push down on detent axis and at the same time pull out stem. To replace stem in movement simply push in stem and detent will fall automatically into stem slot."
I thought, now there is some technical information.
Matthias
[Updated on: Sat, 12 October 2019 17:11] Report message to a moderator |
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