Sne109/107 stem length - Seiko & Citizen Watch Forum – Japanese Watch Reviews, Discussion & Trading
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Old 03-10-2019, 07:08 PM   #1 (permalink)
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Default Sne109/107 stem length

Hey dudes, I went to change the time on my sne107 because daylight savings and the whole crown/stem came out. Could someone who has this solar be able to give me the measurement of the stem tip to where it meets the crown and the stem tip to the end of the crown?

Much appreciated!

Also, should the old stem just screw off from the crown as expected?
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Old 03-11-2019, 03:19 PM   #2 (permalink)
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Originally Posted by teatimecrumpet View Post
Hey dudes, I went to change the time on my sne107 because daylight savings and the whole crown/stem came out. Could someone who has this solar be able to give me the measurement of the stem tip to where it meets the crown and the stem tip to the end of the crown?

Much appreciated!

Also, should the old stem just screw off from the crown as expected?
If the stem is still in tact then it's probably not the issue, but rather the assembly for the time\day\date change has something out of place. You would need to take the day\date wheel\disk off and check it.

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Old 03-11-2019, 08:10 PM   #3 (permalink)
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If the stem comes out (and the stem is not broken), it’s most likely a set lever issue
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Old 03-13-2019, 07:02 PM   #4 (permalink)
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Thanks guys...for some reason the pic didn't look like it posted. I believe the end piece is broken off or missing.

I guess I'll just try to measure and cut once I receive the stem. Anyone know if the old stem should just twist off?
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Old 03-13-2019, 07:09 PM   #5 (permalink)
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Originally Posted by teatimecrumpet View Post
Thanks guys...for some reason the pic didn't look like it posted. I believe the end piece is broken off or missing.

I guess I'll just try to measure and cut once I receive the stem. Anyone know if the old stem should just twist off?
It's hard to tell from the pic, if it did break off then you're back to taking the movement out and taking the day/date disk/wheel off to get the broken piece out.
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Old 03-13-2019, 07:31 PM   #6 (permalink)
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You will need a pin vice to grip the stem and rotate it anticlockwise to loosen..however it might be a sprung stem that I believe is keyed into the crown and so can't be removed or replaced? If you have found the exact stem then I guess it just need unscrewing.. 7s stems are different, just wondering if that is similar..


When cutting your new stem....keep measuring, and don't cut too much off! It can take a lot of testing to make sure you have the correct length....and as Jerry said you might need to check the remnants of the old stem aren't trapped inside.

Screw the new uncut stem into the crown and test in the watch. You should then measure the exact distance the crown is proud of the case and then mark this distance on the thread of the stem after unscrewing it. Use a fine tip marker. Then mark again a millimetre or so short of this mark so that you can cut it there, with material left over for fine tuning.

Test again in the crown and watch and check clearance, after this you want to file the stem down at 45 degrees and keep testing. When happy with how the crown sits against the case with full operation, use some thread lock, a small amount on the tip of the thread, and screw the stem into the crown using your pin vice. Test again and you should be good to go.

Can be a bit of a mission doing a new stem I find!
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Old 03-14-2019, 12:44 AM   #7 (permalink)
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Old stem is definitely snapped off. Hope that the other piece is not left inside (will need a lot more skill to get it out, compared to just cutting a new stem to size)


Stem and crown on this one is a regular screw in (not 1 piece like the divers)

Last edited by Acidstain; 03-14-2019 at 12:48 AM.
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