Seiko Divers Watch 5H26-7A1A case 5H26A movement

Peter Stanley · 2023-03-18T03:16:51-0400

Hi everyone, hope someone out there can help. I’m trying to obtain a stem to fit the above divers watch. Does anybody know where I can get one? I found one thread which indicated I may need part number 401/1221 but I can’t confirm this. Thanks

dlev · 2023-03-18T05:29:12-0400

70E04NS1 is the crown an stem. Not sure about stem only. Allegedly a weak point (the stem) on this model.

Peter Stanley · 2023-03-18T07:06:40-0400

Many thanks, for the fast response, much appreciated. I acquired a crown recently for this model and sent it in for it to be fitted. They repairer came back and said I now need a stem. My interpretation was that the crown was correct and that I needed a stem to match? Unless of course they are wrong

Peter Stanley · 2023-03-18T07:25:22-0400

I think I’ve identified an alternative that should fit.

8100-2667Y which is a crown and stem for the 5h26A movement.

just need to find someone who sells it ?

dlev · 2023-03-18T16:32:21-0400

Following the trail further, for movement 5H26A, winding stem part no looks to be 351 671.

Thanks to J Borel parts list reference 401/1221

I can’t see any discussions where this has passed the “acid test”, so please check further.

A Seiko AD can hopefully confirm for you

I have a 5H26-7A10 and could be in the same predicament one day

Peter Stanley · 2023-03-18T17:02:41-0400

Did you see the post about the possible alternative part number: 8100-2667Y

dlev · 2023-03-18T17:21:18-0400

Peter Stanley said:
Did you see the post about the possible alternative part number: 8100-2667Y

That’s the crown and stem complete (gold colour crown) but looks like the J Borel part no. (Discontinued Seiko part 70E04NH1)

Peter Stanley · 2023-03-18T17:41:20-0400

Ok, well as I already have the correct stainless steel crown, it is just the stem I need! Back to the drawing board then to identify stem.

I must admit I was hopeful with the 491/1221 number. But I couldn’t find any stock. Appreciate your help.

dlev · 2023-03-18T22:26:17-0400

No problem, there a few 351 671 stem listings on EBay.

Peter Stanley · 2023-03-19T03:58:24-0400

I’ll let you know if I manage to get it and it fits! 😀

dlev · 2023-03-19T04:59:21-0400

Thanks, 5H26-7Axx seems to be the forgotten child, part of the brave new world of mass Quartz movement production.

Seiko Divers Watch 5H26-7A1A case 5H26A movement

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