I just upgraded my Apple Watch to a 42 mm series 10. I love having fancier bands and wear them every day, not just for formal occasions. This one claims to fit all the way down to 38 mm, which was my old watch, but there’s no way that that would actually work. As you can see in the picture, the bandwidth is too wide and sticks out from the watch face (42mm). The band connects in, but is just too wide for this size watch. I really wish it would’ve fit as nicely as other bands that I bought because it’s a beautiful design.