cream dials are only seen for a few years of the white gold surround transitional 16550

 

Yes I’ve always thought it was only WG. Thanks

 

I,ve also looked into the transition from 16550 dials moving from “white (unpainted) white gold” surrounds to “black white gold” surrounds on white dials - and there is no clear pattern emerging

the earliest seen is on a 8,9 serial with a cream dial, but this could be an outlier

 

Here is a nice Panna 16550 I had a few years ago for reference.

 

I have seen as low as 8.45M serial. Let me know if you need link