I am servicing a Seiko 6602 and have found the mainspring at fault.
Trouble is I can't open the barrel.
Can anyone advise how to go about this. Or alternatively assist in sourcing a complete replacement ?
Many thanks for any help.
Kind regards. Matt.
I have attached some pics, hope it...
1. You have an incomplete catalogue and can't seem to track down the GR code for a Lordmatic Special 5216 mainspring, however there seems to be (2) options. The measurement of the old mainspring is 0.944 x 0.124x x 360ish barrel I.D. 10.7 which of the two possibilities would work best...