Print the bracelet links with PLA ABS or PETG (or really anything you want). No support required.
I recommend printing the buckle with either ABS or PETG (ABS works best). PLA is not recommended for the buckle clip as it is brittle and will break if bent.
The buckle mouth may require a small amount of support as it can make inserting the clip easier. However, it does not absolutely need it.
Print all parts with 0.12 mm layer height.
Attach the links together with small lengths of 1.75 mm filament, and cut it flush with diagonal pliers.
Print as many links as fit your wrist. You can easily print the links with different colors and arrange them in a pattern according to your personal taste.
I hope you enjoy this design!