Nh35 movement

[Thewatcher2020]

 Hi guys

 

Quick question, is it possible to release the stem on a seiko epson nh35 movement from the top down. Im trying to mod a monoblock case (steeldive mm300 homage) and I need to remove the stem, there is no collar extension system. I have the date disk and auxilleries stripped off but the release mech is under the chassis. 

Anyway to release the stem?

[watchweasol]

Hello and welcome to the forum      As regards to the question If the movement was designed for the conventional case ie  screw back, and the release designed for the same,   I wold say  no. but there again I have never tried.  May be other members have come ascross this problem before.?

[Thewatcher2020]

With a case back the stem can be removed by pressing the release. Bit of a tough one i think

 

[jdm]

Normally when there is no access to the stem release then the stem is of the split type, it can be separated by pulling. Cousins UK has a selection of extender with which one may be able to convert a regular stem into a split type.

Another technique is to cut a small chamfer in a single piece stem so that it can be pulled out. That requires a clock / watchmaker's lathe.

[Thewatcher2020]

Thank you all for input. I did manage to get it out by prying the movement out slightly and BENDING the stem so i could access the release from underneath. Risky but it all worked out!

[Tudor]

“Brute force always prevails.”

You may consider a split-stem “upgrade” for this.