The best solution I've found is the Pelican 1490 case. It holds about 18 watches and is the right depth. The 1450 is also nice but not quite deep enough to protect scratch-prone acrylic crystals.
I am very close to picking up a wolf 10 slot watch box for myself but before I commit, wanted to see what members on the forums use to store their watches!!!
I have a wolf 10 lost box and I like it a lot. It’s also nice as I self limit myself to 10 watches at a time.