How To Reset Your Apple Watch To Sell. Press firmly on the Power Off slider and release. However there is a way to reset and erase your Apple Watch when there is no access to the paired device according to Apple.

Open the Apple Watch app on your iPhone and tap the My Watch tab. If you want to trade in your Apple Watch Decluttr is the easiest way to do it. Connect the Apple Watch to the charger.
Finish preparing your Apple Watch for sale.
On the Apple Watch. Finish preparing your Apple Watch for sale. However there is a way to reset and erase your Apple Watch when there is no access to the paired device according to Apple. Erase your Apple Watch data.
