AS 554 Mainspring

[markr]

I need help finding a mainspring for an AS 554.  I called Cas-Ker and the one they said would fit had the wrong end.  I need a hole end 0.19 x 1.74 X 300mm.  Can anyone help me find this?  Thanks.

[rodabod]

0.19 sounds awfully thick. Ranfft suggests 0.12 thickness which is in the range I'd expect.

[markr]

Measured with digital calipers. I could be wrong.

[Walsey]

I have a BestFit catalog that shows it uses a BestFit 910N mainspring, there's one on ebay for sale...

[markr]

Even with the Ranfft numbers I can't seem to find correct one.  This is my first complete tear down clean and assemble.  It's been fun up to now.

[rodabod]

Where are you based?

[markr]

Milwaukee U.S A.

[mikepilk]

Cousins lists GR5285,  0.115 x 1.80 x 340

The WatchGuy extracted all the data from the GR catalogues and put them in one table :

https://watchguy.co.uk/cgi-bin/mainsprings

Very useful. Thanks WatchGuy

 

Edited October 8, 2020 by mikepilk

[nickelsilver]

2 hours ago, mikepilk said:

Cousins lists GR5285,  0.115 x 1.80 x 340

The WatchGuy extracted all the data from the GR catalogues and put them in one table :

https://watchguy.co.uk/cgi-bin/mainsprings

Very useful. Thanks WatchGuy

 

Ha I was just looking in my GR catalog, that's correct. It won't have a hole end, but the normal tongue end will work fine with the hook in the barrel.

[VWatchie]

3 hours ago, mikepilk said:

The WatchGuy extracted all the data from the GR catalogues and put them in one table :

https://watchguy.co.uk/cgi-bin/mainsprings

Very useful. Thanks WatchGuy

Indeed! Thanks WatchGuy! 

I have a Poljot Alarm (my first) in the pipe and was worrying about the spring in the alarm barrel. When I checked the list I saw this:

Poljot    2612 mouv.    RS1S06430    3283-DB...
Poljot    2612 reveil    RS1S09739    5215-DB...

Jumping up and down with joy! 

Edited October 8, 2020 by VWatchie

[markr]

8 hours ago, nickelsilver said:

Ha I was just looking in my GR catalog, that's correct. It won't have a hole end, but the normal tongue end will work fine with the hook in the barrel.

I ordered the one suggested by Cas-Ker.  I didn't order it before because it had a tongue end and I needed a hole end. If you say it will work I'll try it.  Thanks for every ones help.