T19 crystal question on 6538 Silix case build

[Frazzle1]

Need some help, I want to replace the crystal on my Silix cased 6538 but not sure what to get.

Kime used a Sternkreuz HW306 (30.6mm), which I can get for under £5.

On eBay I can see two variants of the Clark T19 25-19.

Below are the links and neither specify a diameter of the crystal.

http://pages.ebay.com/link/?nav=item.view&alt=web&id=251628304296

http://pages.ebay.com/link/?nav=item.view&alt=web&id=251758199191

All to confusing but would like to do this build justice.

Thanks

[alligoat]

You're trying to fit a crystal on a chinese rep. So that means it has chinese dimensions, not Rolex dimensions. If the 30.6 crystal worked for Kime, you're best off to stick w/ the same size.

You can go to ofrei.com and see dimensions on the T-19- they vary but all are less than 30.5mm.

Buying a set of calipers would also be a good idea- Harbor Freight has them for around $15.