Everything is fine. Looks better than the cheap black strap that came with the watch. I don't know what kind of leather that is. The brackets are quite light. If you wear your watch tight enough, the heart rate monitor will work, this bracelet will let you go. I've never had a watch fly or anything like that, but yesterday it came off 3 times. It's pretty annoying. I don't hate and I don't love. Everything is OK.
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