If you’d like to replace the bracelet, you can measure the lug width (e.g. 20mm) to find one that’s compatible. When you’re ready to swap the bands, you will find little spring bars beneath the lug joint covers. If it’s difficult to reach the spring bars through the gaps, you can loosen each cover by slightly bending the two tensioner arms on the underside of the watch. There are little notches on each side of the spring bar that you can catch with a small tool/knife/fingernail and compress, letting each side of the bracelet free.

Installation of the new band is the reverse but usually easier, especially if your new bracelet style doesn’t use a shroud over the lugs. (If you want to put the joint shrouds back at some point, just remember to pinch the tensioner arms a bit before reinstalling, otherwise they will be noisy when you move your hand.) Then you’re done!