Please assist me with Tudor Rose Sub 7928

[sub2004]

Dear Sirs

I have seen a Tudor Rose Sub Ref 7928 as follows:

Cal. 390 Tudor Auto prince movement.

Serial number. 111.65

Between lugs @ 6: 505000
Between lugs @ 12: 7928
Band marked 9315, end peice 380

(pics taken from sale site and all credit and images are owners)

Three issues i have picked up on are:

1. Trip Lock Crown
2. 7 positions adjuster does not have "ROW" on it
3. Oyster band is not period correct

I do not have the option of inspecting as will be purchasing overseas.

I would be very grateful if you could look at the pics and give me your thoughts as to market value, originality, issues, authenticity etc