Repro Rplex crown sizes

[newf]

Hi, Guys,

Is there a standard size for the repro Rolex crowns and stems for the 2824-2 and 2836-2 ETA movements?

Here's a crude drawing of what I've measured from a crown for a daydate and the crown from a sub.

Just been looking through some ads from Andrew and Joshua - seems like they're using the 2836-2 for most of the Rolex models - so I seems as if the only difference would be the case tube and crown - looks as if the same stem would work in all cases.

Am I right in thinking this?

Thanks,

Newf