Loose fit watch in frame help

[muddtt]

Picked up one of these style of watches where the watch comes out of the frame. The watch fits in the frame very loose and will just fall out. Any way you guys resolve this easily?

[Marc]

Do you have the crystal?

On all of the watches of this style that I have worked on the crystal fits over the case back and the upper case (or frame as you refer to it) clamps the crystal firmly in place, so the crystal takes up the slack to provide a good interference fit between the upper case/crystal, and the crystal/case back.

[muddtt]

It did come with a crystal, but it was broken pretty badly. I can see that you seem to be right. When I hold the crystal in a little it does seem to fit tighter. Any idea if its some special crystal, or is it just a standard high dome acrylic?

Thanks!

[Marc]

You want the Sternkreuz ST, Domed Top range which you order by outer/inner diameter.

Check out here.