frequent change bands

I bought my Apple Watch Sport on launch day and basically since a year or so I'm changing between now 6 different watch bands on a daily basis (3 fluoroelastomer and 3 nylon). There is no wear on the mechanism neither on the watch nor on the fluoroelastomer bands. The nylon bands initially were very hard to slide in and out of the watch and have since worn out a bit to a now acceptable level.

Hi

Apple Watch bands can be changed as often as you wish.

Be sure to follow the instructions here when changing bands:

Change your Apple Watch band - Apple Support