Crown on new datejust 41 solid gold or not?

[carl123]

Hi, I am a bit confused, when I pull out my crown fully to adjust time on my new datejust 41 126333, all I see inside crown is gold, gold stem and the threads inside crown appear to be gold, but it screws down onto the steel case with steel threads. I thought the gold crown had a machined in steel thread so gold and steel did not meet as obviously the gold would get worn quicker. I only wear it at weekends mostly, due to work, so it does get adjusted and wound on a fairly regular occasion, hence my concerns. The watch was brand new from AD so I know it's correct crown, could just ask them when I go back, but I feel more confident in this forum with very knowledgeable Rolex enthusiasts, thanks for reading, look forward to any advice, cheers Carl.