Two. Locate the band release buttons. You will find 1 for the top band and 1 for the bottom. They are really skinny oval buttons with the incredibly top rated and base in the again facet from the watch. Smaller Apple Watches with a casing size of 40mm or 41mm https://arthurschkr.bloggerchest.com/26742892/getting-my-parts-of-an-apple-watch-band-to-work