16mm is the diameter of the bead, which has nothing to do with the circumference of your wrist.
16mm beads, suitable for slightly burly men.
If your wrist circumference is 22cm, it is suitable to wear 18 mm or 20 mm diameter beads. 18 mm means 14 beads, and 20 mm means 13 beads.
If there are trinkets, buckle one or two beads.
The man wears a tiger's eye stone, which is too pure yellow and has no personality. The rarest is pure blue, which is more personal, but it is not easy to find. Yellow and blue ones are easier to find. You can find them immediately and put them on. There are also red ones, which are usually burnt and there are quite a lot of goods. It's your choice.