I would recommend size 16 JUC for you. I have size 15 JUC (regular model) with a 14.5cm wrist and I sometimes wish I had kept the 16 instead (though it was a bit loose for me). If you are planning to get the small model, then size up even more as I find it fits a bit smaller than the regular model.I would like to buy the JUC small and my wrist size is 15 cm.. I do not like a loose fit but I am afraid that a 15 size would be too fit.. on the other hand I am afraid that 16 would fit too large.. could anyone provide a picture with a 15 size having a 15cm wrist or a 16 size? I don t exactly realize how fit it would be.. did you choose the 15 having a 15 cm wrist? Does it bother you or hurt?