Wyze Watch 44 Charge terminals rusting

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I posted on another thread 5 days ago that I had applied automotive clearcoat. So far so good, but…only 5 days.

Wyze Watch V2

On my replacement 44 watch, I have added a couple dabs of automotive clearcoat from a touch-up kit I have, onto the magnets, leaving the charging contacts bare. I think repeated rusting is inevitable otherwise. Will see if this prevents it. Wish I would have thought to do this before I started wearing it. I tried to clean off any dried sweat/salt residue before applying the clearcoat. [Capture]