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Hello,

Is a friction spring behind the dial always necessay? Im building a watch using an ETA 2824-2 movement, only I have no friction spring.

What do you guys think?

TIA,

Regards,

Tom
 

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Yes, otherwise it wouldn't be there.

It keeps the hour wheel engaged to the minute wheel.
 

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Hello,

Is a friction spring behind the dial always necessay? Im building a watch using an ETA 2824-2 movement, only I have no friction spring.

What do you guys think?

TIA,

Regards,

Tom
It matters how your dial is shaped. Friction washers came in during the era of domed dials and curved dials when there was actually space for the hour wheel to ride up over the minute pinion. If your dial doesn't give enough room for this much vertical movement, then you don't need it, but what's the point of leaving it out? You don't gain anything by doning so, and it is one addition step of thoroughness that makes sure you won't develop troubles down the line.

Hope you will post your watch when you are done.
 
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