I presume there is no case reference number present on the outside or inside of the case back?
Looks like an 869116/02 to me.
Based on the shape of the crown (I assume it is signed), it looks correct to me - I think the flat crowns were found on the later versions with thinner coloured bezels.
The seconds hand is wrong. The steel seconds hand was much wider and lumed. Alternatively, I think it could have had a red lumed seconds hand.
I think the bezel is correct for this reference although it could be a later replacement. Other watches used a similar bezel.
The crystal has also been replaced. Originals with the loupe are hard to find although I understand that it is now possible to source a modern replacement.