Vintage Gruen
The forum for Gruen watch enthusiasts.
Home » General Talk, Buying and Selling » For Sale/Wanted/Free » Wanted - Clutch lever for a 707-710 Caliber
Wanted - Clutch lever for a 707-710 Caliber [message #16149] Tue, 22 February 2022 18:29 Go to next message
Gary is currently offline  Gary
Messages: 2208
Registered: May 2013
Location: Seattle
Gruen Authority
Cheerleader
I have a broken clutch lever I need for this 707. I have a part movement 704 but it has different bits. Crying or Very Sad

Any spares out there?

Thanks in advance!

/vgforum/index.php?t=getfile&id=9010&private=0

/vgforum/index.php?t=getfile&id=9011&private=0

Report message to a moderator

Re: Wanted - Clutch lever for a 707-710 Caliber [message #16150 is a reply to message #16149] Wed, 23 February 2022 13:09 Go to previous messageGo to next message
Jenneke is currently offline  Jenneke
Messages: 2000
Registered: May 2013
Location: Netherlands
Gruen Authority
if the spares dont fly out of a drawer, It seems ofrei and scotchwatch might have them.

You can only waste time if you forget to enjoy it - Loesje

Report message to a moderator

Re: Wanted - Clutch lever for a 707-710 Caliber [message #16151 is a reply to message #16150] Wed, 23 February 2022 14:51 Go to previous messageGo to next message
Gary is currently offline  Gary
Messages: 2208
Registered: May 2013
Location: Seattle
Gruen Authority
Cheerleader
Yeah, neither JB nor ofrei had them. I could get the ole lot of clutch springs from scotchwatch and craft my own. I would hate to part up a good 707 for it.

Report message to a moderator

Re: Wanted - Clutch lever for a 707-710 Caliber [message #16152 is a reply to message #16151] Wed, 23 February 2022 16:11 Go to previous messageGo to next message
Gary is currently offline  Gary
Messages: 2208
Registered: May 2013
Location: Seattle
Gruen Authority
Cheerleader
Found my box ole detents. ;-)

Fun fun...

/vgforum/index.php?t=getfile&id=9012&private=0

Report message to a moderator

Re: Wanted - Clutch lever for a 707-710 Caliber [message #16153 is a reply to message #16152] Wed, 23 February 2022 19:09 Go to previous messageGo to next message
Gary is currently offline  Gary
Messages: 2208
Registered: May 2013
Location: Seattle
Gruen Authority
Cheerleader
Found one at ofrei! I got out a nail and was going to file and saw one out but will save that effort for something rarer.

Report message to a moderator

Re: Wanted - Clutch lever for a 707-710 Caliber [message #16154 is a reply to message #16152] Wed, 23 February 2022 21:12 Go to previous messageGo to next message
Jenneke is currently offline  Jenneke
Messages: 2000
Registered: May 2013
Location: Netherlands
Gruen Authority
GaryM wrote on Wed, 23 February 2022 17:11
Found my box ole detents. ;-)
Gosh. I guess it was between the boxes with old springs, screws, hands and rubies. Very Happy
I am accumulating too Shocked

Glad you found it. I thought I saw one while looking for spares for my 707.

And how does the rest of the watch look like? Smile


You can only waste time if you forget to enjoy it - Loesje

Report message to a moderator

Re: Wanted - Clutch lever for a 707-710 Caliber [message #16155 is a reply to message #16154] Wed, 23 February 2022 22:00 Go to previous messageGo to next message
Gary is currently offline  Gary
Messages: 2208
Registered: May 2013
Location: Seattle
Gruen Authority
Cheerleader
Jenneke wrote on Wed, 23 February 2022 21:12
And how does the rest of the watch look like? Smile
Not so good, loosened the hairspring stud and removed the bridge.

Shocked

/vgforum/index.php?t=getfile&id=9014&private=0

Now to find a new hairspring. Looks like I'll need a new mainspring as well. A little bit of everything...Side notes the main spring barrel wheel has a left-handed screw along with the ratchet wheel. First time seeing that in any teardown.

/vgforum/index.php?t=getfile&id=9013&private=0
  • Attachment: harispring.jpg
    (Size: 142.46KB, Downloaded 1441 times)
  • Attachment: 707.jpg
    (Size: 90.17KB, Downloaded 1470 times)

Report message to a moderator

Re: Wanted - Clutch lever for a 707-710 Caliber [message #16156 is a reply to message #16155] Wed, 23 February 2022 22:17 Go to previous messageGo to next message
Jenneke is currently offline  Jenneke
Messages: 2000
Registered: May 2013
Location: Netherlands
Gruen Authority
Finding a hairspring is a lost cause I guess? Or was it in any way standardised. Problem is if you want to clean and oil the balance, you”ll have to remove that balance. Havent dared it yet.

All of the Lavina 7xx movements probably have a left handed screw on the barrel. My 75x and 740 have it too.

Fun learning project! Laughing

You can only waste time if you forget to enjoy it - Loesje

Report message to a moderator

Re: Wanted - Clutch lever for a 707-710 Caliber [message #16157 is a reply to message #16156] Wed, 23 February 2022 22:56 Go to previous messageGo to next message
Gary is currently offline  Gary
Messages: 2208
Registered: May 2013
Location: Seattle
Gruen Authority
Cheerleader
I believe any Gruen hairspring 18,000 bph will do, have to verify though if the spring is an overcoil or flat. Page 377 of Mike's green book shows the vibration chart. I have another 707 in the wings I'll break open and verify.

[Updated on: Wed, 23 February 2022 22:56]

Report message to a moderator

Re: Wanted - Clutch lever for a 707-710 Caliber [message #16158 is a reply to message #16157] Wed, 23 February 2022 23:13 Go to previous messageGo to next message
Gary is currently offline  Gary
Messages: 2208
Registered: May 2013
Location: Seattle
Gruen Authority
Cheerleader
Ahh, verified it's a flat regulator so ofrei has them in stock. Just have to look at the balance wheel and see if Gruen put a reference dot to line the stud back up. Obviously I couldn't mark it.

Report message to a moderator

Re: Wanted - Clutch lever for a 707-710 Caliber [message #16202 is a reply to message #16149] Fri, 04 March 2022 12:51 Go to previous message
C. Hurt is currently offline  C. Hurt
Messages: 243
Registered: May 2013
Gruen Guildsman
Gary,

If you haven’t yet ordered the clutch spring, I have it, and tons of other 707 parts. Let me know if you still need it.

Cary

Report message to a moderator

Previous Topic: NOS Gruen Mainsprings
Next Topic: WTB: Caliber 450 chrono hammer
Goto Forum:
  

[ Syndicate this forum (XML) ] [ RSS ] [ PDF ]

Current Time: Wed Jun 25 06:15:26 UTC 2025

Total time taken to generate the page: 0.00849 seconds
.:: Contact :: Home ::.

Powered by: FUDforum 3.1.3.
Copyright ©2001-2023 FUDforum Bulletin Board Software