If he's even a little bit of a watch guy... and this will be his 'one watch' (that is harder to type than you can ever imagine)... Then I would definitely go Aqua Terra Master Co-axial... And would go Blue... It is the ultimate Sporty/dressy/casual 'one watch that does it all'....
Plus, even if he's not a 'Watch guy' maybe he'd get a little kick out of knowing that he's wearing James Bond's watch... Skyfall 39mm...Spectre 41mm (his size would dictate case size) ... plus, even a non watch guy would find it impossible not to find this model incredibly beautiful...
Then Again, you know him better than any of us.. you know his style... does he even wear a watch? If he's a total 'non-watch' guy, then you may not want to push this.
You can't force your passions onto him... I tried buying a watch for my Mother once.... but she's one of those 'Special occasion only' gals...so it is a safe queen..
A waste... that watch deserved to be worn, and she probably would have gotten a lot more use out of something far less expensive...truthfully she may have long since flipped it for cash...
🤔
If this gift is not going to be appreciated on the level that you would want... you may be setting yourself up for a negative outcome, and you really don't want to feel resentment every time he shows up for dinner wearing an apple-watch...