Just my opinions here. I could be wrong. I have not read your VRF posts.
I do not own a 6538.
4 liner and post 1957 6538 should have Red triangle bezel insert.
This insert looks to emulate the early 6536 and 6538 style no minute hash
but the fonts do not look like what I have on my hard drive of known real inserts.
Lume is definitely NOT original. 6536 and 6538 had the 6 marker made out of different
compound and it ALWAYS looks whiter than the other markers on original dials.
The OCC serifs look way off, too exaggerated. Specifically, I don't think there
should be any detectable serif on the "C" I look through the ones I have on my
hard drive and none look like this. The "L" serif also looks unnatural and
again, I think there should be no detectable serif. The I and the C are running
into each other in OFFICIALLY and I can't find this trait on any of the dials
I have on my hard drive.
The Submariner relative spacing also does not look similar to any I have on hard drive,
but there are a lot of variation in these dials.
The rehaut doesn't bother me, I am including a picture of a 6538 with similar
rehaut but it is an early 6538. I am by no means an expert on the 6538.
I would specifically ask Eric Ku, PhilippS, Bernard on VRF. If they say it's no good, it's no good.
The flat top 4 in the serial number between the lugs also looks suspicious to me.
I'll also include some 6538 4 liners here for comparison.
Here's the one with similar rehaut, but it is a double reference 6536-6538, thin case:
View attachment 120011
This is a Vietnam dial:
View attachment 120012
Here are some real 6538 4 liners:
Serial 674xxx:
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