Finding crown for Rolex 1675 steel-gold 1977

[Magicgmt1675]

Hi mates!

I am new in the group, so first let me say Hi everybody! I am a watch collector since I was 17 and I love Rolex since the beginning.

I get a Rolex 1675 steel-gold from 1977 few months ago but there is a problem with the watch. The crown does not screw well so I tried with different replacements but none is working for the moment.

I would like to know if you can help me to find what exactly reference is for the crown of this watch. As I understand is a 530- but I don’t know if has another particular reference as I know 530-0 is for full stainless and 530-8 is for solid gold.

Appreciate help!

Cheers!