I have those two watches and love both of them. They're very different.
The Sub has a way better bracelet because of the on-the-fly bracelet extension (Glidelock) but I tend to wear the Santos a lot when I'm not in the mood to be murdered for my watch.
Just be sure you ship or move them in a way that you can declare them as moving goods so you don’t get taxed on them. Lots of people said to send them to a friend or dealer but do your research to be sure that can’t be construed as a sale or a gift.
Moser customer service is awesome. I've spoken on the phone a couple times with the guy who emailed you. He was helping me try to track down a specific reference in Germany. It ended up not being available anymore but he went out of his way to help me.
Moser makes high-end watches but they're very unpretentious.
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