Help-Yatch Club 811 Authenticity

Greetings, can anyone help to analyze the authenticity of this 811 piece, i found this on the vintage watch seller in my region.
this will be my 1st IWC collection. 
Any comments will be useful. Thanks beforehand.
Regards.
Chris

We have too limited data on the movement. Can you read the calibre number and more importantly the movement number (7 digits)?
Adrian,
(alwaysiwc).

Hi Chris,
from what i can see nothing is wrong with the watch, it would be good to see the inside of the caseback also for the reference number.
The Yacht Club is a great watch, i wear one today and i absolutely love it. The watch comes with the legendary 8541 movement which is of excellent quality an marvellous finish. The movement is attached to the case with an elastic system formed by rubber elements to create more resistance to shocks.

best regards

Cromagnonman

I cant see anything wrong with it either :) it should have the case number stamped inside the caseback, as well as the reference number - type in the case number and movement number to the "Date Your IWC" applet and they should be within a few years in dates.