I think you might be right.

With regards to the crown, I have no idea where to source one. Mine is not signed (which is correct). I'm sure I've seen pics of the Porsche Design version and it has a signed crown, with the 'pd' logo. I'm sure a blank crown would suit though. If you want me to measure mine, let me know.

Stewart

: I think your crystal was fit very snug with very little crystal
: seal.
: Is it possible you had a minute crack to start with and when the
: watch was subjected to lower temperature
: there was just enough movement to let this crack continue?
: Just trying to find an explanation or you have ghosts in your
: house... ;)
: I would like to know where I can find this black crown for my
: Porsche Design watch with the same movement.
: :
: :