I was in a nearby Best Buy Store messing around this past Sunday and saw a black Platinum magnetic watch band.
Does it require any adjustment throughout the day? My $12 version does and it's a little annoying.
The band is very smooth, almost silky-feeling, and the magnet is also smooth (but not 'silky'). I'll try a thin could of something that has some friction to it, maybe a very thin coat of 3M Weather Adhesive or the like.
I like the band well enough but am annoyed at the need to readjust it more than once a day.