Oyster Perpetual Date, 1967 authenticity

[Transliterator]

Hi there,

New member of the forums with a query. Wondering what the opinions on this watch from ebay are regarding its authenticity.

Oyster Ref 1500

I have been scouring images of similar watches trying to identify familiar patterns, and everything seems alright so far except the movement looks slightly different to another picture I saw
where the second cog is silver instead of gold in appearance, and of course a flywheel or some such is visible and that area is covered in the photo.

The other area is there "T SWISS T" mark, where the I in the SWISS appears to be covered by the Tritium blob, I have seen one other example of this in a watch from a similar era, but there was a question of angle as well, is this a normal occurrence?

I decided to purchase the watch anyway, as it seemed to be genuine enough, but I would certainly appreciate some reassurance!

[Transliterator]

No-one have anything similar? Or perhaps I have posted this in wrong section, should be in ebay trades instead.