The 5146 is truely a very, very nice one!
What I like most is the clear moon phase without the 24h scale around it.
Just one thing is not so "nice" about it: it showes also the months gone by, and that could create a melancholic feeling.
In that point the 5396 is "straight forward".
Also: the 5396 reminds me of the great 3448 and 3450!
I would let the second hand remove from the 5396 just to give it a bit more the look like the above mentioned, if I would own one.
Regards
De Monet