I'm not up on GS's, but most all Seiko dial numbers don't match the case back numbers. Because many cases have multiple dial colour/finish combo's- so the numbers won't match.
Definitely 19 mm.Do you know the lug size? I think it's 20mm, but I'm not sure.
Thanks
In that photo above your post, its not actually a new clasp but a sprung 'extender' that attaches to the original clasp, like in this eBay listing, they work very well.Yeah, I think the easiest option is a different clasp that extends the band. The issue is that it's only 15 or 16mm I think. I'm not sure what options are out there at that size. Also, how do I go about changing the clasp? Do I need a jeweler to do it? I think so because of the riveted end.
Thank you for your reply! I had noticed the little notch too but I did not know it needed a special tool.This case back is a screw-on. It is very different from most. There is only one notch into which a special tool is used. The idea is to keep knuckleheads like me out of their 9943's which feature no amateur adjustments. It works in my case.
From the pictures above, yours would appear to be a clip on back :undecided:, the notch in that case being an orientation mark which has to be lined up with a small 'punch' mark in the case body, viewed through the notch................Thank you for your reply! I had noticed the little notch too but I did not know it needed a special tool.
In my case, I wish I could check the inside out because I am worried that the inside could be dirty (or an old battery leak). The watch was pretty dirty when I got it. Also something strange happened when I changed the battery for the first time (I received the watch not working - the japanese owner claimed he could not check its operation because he had not a spare battery, so I could have bought a broken watch also). When I put a brand new battery nothing work for a long time (15min-20min) then suddently while I was cleaning the house gently, it started ticking. I want to bring it for maintenance before messing up with the trimmer myself. I wonder if they will be able to open such a caseback too ?
I noticed a recess at 120 degree from the notch. Do you have it also ? Probably for that special tool also I suppose... (See pictures below). What do you think ?
PS : I had an extra pic of my 9943 without its bracelet (for cleaning I removed it), it is the same as the first post of this thread. A very nice bracelet indeed (I have a King seiko and the difference of quality is obvious) however I feel this watch would be nicer on a strap... The other watch is the SBGA125 (blizzard).