Hi everyone

Am I right in thinking that the crystal and tension ring needed for a Mareographe in the 2446 compressor case would be identical to that needed for the Autavia in the same case?

Apologies if this seems like a daft question but having sourced a NOS replacement, I've just discovered that it doesn't fit.

Although it seem as if the crystal would fit the case, the inner diameter of the tension is too large and the dial fits through it.

I attach a picture of the replacement crystal in case anyone is able to categorically say that it is not the correct crystal.

Many thanks for your help

Andrew