I have the Space Black watch with the link band, and have been wearing it on my left wrist, as I have worn all watches since I started wearing a watch. About three months ago I started getting a sharp nerve pain whenever I reached out with my left hand and grabbed something. Went to see my primary care Dr., and she thought that it was de quervain syndrome, https://en.wikipedia.org/wiki/De_Quervain_syndrome , and she sent me to a hand specialist. The specialist felt that it was the watch band causing the issue as it was pressing on a nerve running on one of my arm bones, and didn't think it was de quervain, as the pain didn't go all the way up to my elbow, it stopped around my wrist. He suggested I quit wearing the watch on that hand, and give it six weeks, to see if it went away. I bought a black sport band, and started wearing my watch on my right hand. Man, oh man...I never realized what a change that was...for whatever reason it now seems like I am continually banging my watch into things when I move my arm, and I have to force myself to look at my right, not left wrist. Question I have, is just how loose can I have the link band...as I'd like to resume wearing the watch on my left wrist, with the link band not the sport band, as it just looks a lot better. I had it pretty loose, and could rotate the watch around my wrist with no issues. When I exercised (some gym work or walking 1-6 miles) I would get sweaty and the watch would slide up and down my wrist as I moved my arm, but the heartbeat reading seemed like it was working fine. I had thought that it was plenty loose, and, since I have been wearing watches, they've all had link bands of one type or another, and I wore them with about the same looseness. For the sport band, I have it loose enough to slide my watch around my wrist, and it will slide up and down my arm when I get sweaty, but, again, the heartbeat monitor seems to still be working OK. It's been four weeks since I moved the watch over, and, I've not noticed any lessening of the nerve pain. The hand specialist said if it hasn't gone away by six weeks, he'd give me a steroid injection that should relieve the pain and help to reduce the inflammation. Thanks!