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Posted
18 hours ago, TheFixer said:

After a mainspring for a Seiko 6119c

They have them at cousins but are a bit expensive £16.50p, however, I also found one at £7.95.

So my question is what's the difference?

https://www.cousinsuk.com/product/105mm-height?code=GR2534X

GR2534X £16.50p

GR25341X  £7.95p

 

I have consulted my "Generale Resorts"  book and it does not show a GR25341X but does show a GR2533-1X which is the same as the GR2534X but slightly longer 10,5 not 9,5. + slightly weaker 0.11 not 0.115.  Personally I would just purchase the correct spring. 

Posted
2 hours ago, clockboy said:

I have consulted my "Generale Resorts"  book and it does not show a GR25341X 

Which year is you book? If you open the Cousins link above you will see, as I mentioned, that GR25341X has been added and noted by hand after the catalogue was issued. 

In any case, again as mentioned already, that is not the correct MS for a Seiko. 

Posted
4 hours ago, clockboy said:

I have consulted my "Generale Resorts"  book and it does not show a GR25341X but does show a GR2533-1X which is the same as the GR2534X but slightly longer 10,5 not 9,5. + slightly weaker 0.11 not 0.115.  Personally I would just purchase the correct spring. 

That is indeed what I have done.:)

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