I prefer four buttons on a suit, blazer, or sport coat.
I never could figure out why the number of buttons where different on jackets, now-a-days some jackets have five or more on them.
But I do own a sport coat with two buttons on the sleeve and they are kissing.
I will admit the second button stance on the second sleeve is a bit wide, and I have no idea why it would be that way.
Back in the 80's when Ronald Reagan was President, a lot of his suits had two buttons on the sleeve and were only separated just a touch, nothing like the above photo.
Brooks Brothers for a time also had two buttons on the sleeve as well and they weren't kissing, but were the same distance apart as Reagan's suit buttons.
I don't believe Reagan was a BB customer, because Brooks hasn't mentioned him on their history time line.
Best Regards,
Cufflink79