Automatic Winder Question

[BigBoss722]

I recently purchased my second Rolex. When I ordered the new one I ordered a winder for the old one. That way I could switch it on the fly and not have to worry about winding or setting time.

I had the pleasure of speaking with my AD's watchmaker lately and he actually recommended that I not have the watch on a winder. He said letting it sit wouldn't be an issue. I've always heard and read the opposite but I guess with modern lubricants I'd have nothing to worry about just letting it sit; while keeping it running puts wear on the contacts.

Curious of what your guys' thoughts/experiences are.