Maybe you can try it again in the store? For me it will still pass thru my wrist bone but i need to manually push it to go down, unlike the size17 it goes down without any help. My wrist bone is kinda prominent. I think it measures 15cm from there if not a teeny tiny bit more than my wrist. The screw inside perfectly fit and not pushing my skin. Actually after 2days of having it in my wrist, and after watching all the reviews, i went back to the shop, not the shop where i bought my love bracelet as the SA wasnt really helpful. He could barely talk and very dismissive when i ask him something. So fortunately theres one more shop nearby me and went there: Ask the SA if i can exchange the size, she said she can send it to the repair shop to check if still possible to exchange since it already has few hairline scratches. So of course before i agreed to it, i ask if i can try the 17 again. She let me try it and talk to her about my concerns. The SA was very much helpful. She said still a personal preference but for her she prefers a snug fit and told me the reasons why. I was so glad i went to her and had my thoughts confirmed. I like to wear bracelets that are not too loose, otherwise it will bang to everything since i have 2 kids and im a SAHM. maybe you can go to the shop and try again, take your time and dont let anything rush you. Bought mine in a whim and didnt even have enough time to feel and savour my shopping time, felt pressured by the SA. Wish i listened to my SO.