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Gruen Electronic [message #6848] Thu, 12 May 2016 18:23 Go to next message
mikey is currently offline  mikey
Messages: 709
Registered: May 2013
Location: Paris, Ontario
Gruen Master
Model name : Gruen Electronic
Type :
Period/date : 1969-1970
Gender : Mens

Case Maker : Hong Kong
Case Material : SS
Case Serial : 150CA-357A
Case Style no :

Caliber : 9154 - 13 jewels
Movement Maker : ESA
Movement Serial: Y2 ?

Bracelet : Gruen black leather/suede (period?), 17mm lugs.

Other info : Interesting that the battery retainer clip is likely from another watch movement. It shows 11 jewels while the movement itself is marked 13 jewels. Watch is in beautiful condition and runs very well at 28,800 BPH/ This ESA movement (called the Dynotron) was launched in 1967. While it wasn't the first watch movement to employ transistors (that honour goes to the Accutron), it was the first movement to employ both a transistor and a balance assembly.

index.php?t=getfile&id=2844&private=0
index.php?t=getfile&id=2846&private=0
index.php?t=getfile&id=2845&private=0
index.php?t=getfile&id=2848&private=0


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[Updated on: Sat, 14 May 2016 15:38]

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Re: Gruen Electronic [message #6849 is a reply to message #6848] Thu, 12 May 2016 18:35 Go to previous messageGo to next message
MonKee is currently offline  MonKee
Messages: 175
Registered: May 2013
Location: Finger Lakes
Gruen Guildsman
Nice watch Mikey. These transition period electronic watches fascinate me. I have some including one with the same case, movement and hands as yours but a different dial. The most difficult thing about them is finding someone that will repair them. I know of no one in North America who works on them but there is a fellow in the UK that is excellent.
Re: Gruen Electronic [message #6850 is a reply to message #6849] Thu, 12 May 2016 18:37 Go to previous messageGo to next message
mikey is currently offline  mikey
Messages: 709
Registered: May 2013
Location: Paris, Ontario
Gruen Master
hi there and thank you! From what i have read these movements are fairly robust and have few problems. Mine seems to be running very well but given the lack of experienced repair persons, I think i'll take very good care of it...

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Re: Gruen Electronic [message #6851 is a reply to message #6850] Thu, 12 May 2016 18:52 Go to previous messageGo to next message
Gary
Messages: 2108
Registered: May 2013
Location: Left Coast
Gruen Authority
Cheerleader

Nice one Mikey! I have one that has a lightning bolt hands that I got to get fixed.
Re: Gruen Electronic [message #6852 is a reply to message #6851] Thu, 12 May 2016 20:37 Go to previous messageGo to next message
MonKee is currently offline  MonKee
Messages: 175
Registered: May 2013
Location: Finger Lakes
Gruen Guildsman
Sounds like the Electra. Kastner has good photo's of his over in the 50's and up section.
Re: Gruen Electronic [message #6853 is a reply to message #6852] Thu, 12 May 2016 21:24 Go to previous messageGo to next message
mikey is currently offline  mikey
Messages: 709
Registered: May 2013
Location: Paris, Ontario
Gruen Master
MonKee wrote on Thu, 12 May 2016 16:37
Sounds like the Electra. Kastner has good photo's of his over in the 50's and up section.


Which is where i should have put this watch. Perhaps one of the Admin staff can move it to the 1950's & Up Section.


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Re: Gruen Electronic [message #6868 is a reply to message #6851] Sat, 14 May 2016 15:35 Go to previous messageGo to next message
mikey is currently offline  mikey
Messages: 709
Registered: May 2013
Location: Paris, Ontario
Gruen Master
GaryM wrote on Thu, 12 May 2016 14:52
Nice one Mikey! I have one that has a lightning bolt hands that I got to get fixed.



So where's your picture? Smile


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Re: Gruen Electronic [message #6869 is a reply to message #6868] Sat, 14 May 2016 18:03 Go to previous messageGo to next message
Gary
Messages: 2108
Registered: May 2013
Location: Left Coast
Gruen Authority
Cheerleader

mikey wrote on Sat, 14 May 2016 15:35
GaryM wrote on Thu, 12 May 2016 14:52
Nice one Mikey! I have one that has a lightning bolt hands that I got to get fixed.



So where's your picture? Smile


http://vintagegruen.org/vgforum/index.php?t=getfile&id=2160&private=0
Re: Gruen Electronic [message #6870 is a reply to message #6869] Sat, 14 May 2016 18:27 Go to previous messageGo to next message
mrleejohn is currently offline  mrleejohn
Messages: 26
Registered: March 2016
Location: Netherlands
Gruen Apprentice
Nice one... like it!
Re: Gruen Electronic [message #6871 is a reply to message #6870] Sat, 14 May 2016 23:44 Go to previous message
mikey is currently offline  mikey
Messages: 709
Registered: May 2013
Location: Paris, Ontario
Gruen Master
I do like the lightning bolt hands!


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