This is EXACTLY what I ended up doing! I first got the 15, then exchanged for 16, found it a bit annoying so exchanged again for 15. Now I keep wondering if it looks too small on me (feels fine)! At least you never looked back! HahaI had the same issue. My wrist is also 14.5cm and I first had a 15 JUC. I was convinced it was too small, so my SA did a one time exchange for a 16 JUC. Which immediately drove me nuts because it kept getting stuck sideways on my arm, almost flipping not not quite. They must have thought I was crazy, but after a week of wearing the 16 JUC, my SA let me exchange it back for my original 15 JUC. I haven’t looked back since haha.