Vintage black bezel insert for Tudor/Rolex Sub

I am looking for a period-correct bezel insert for my 1982 Tudor Sub ref 94010 Marine Nationale. My research suggests that the inserts are interchangeable between Tudor and Rolex acrylic crystal Subs with crown guards, so would also include Rolex 5512/5513/1680/1665 and Tudor 9401/9411/79090.

Edit: I've been told a fat font Mk III bezel would be appropriate.

The photos below show inserts that appear to be legit.

Bumping with some new information about Tudor/Rolex insert interchangeability.

It that's a plastic pearl, then I don't think it's what I'm looking for. But probably this should be done via PM to avoid bumping.