A chain link bracelet that you assemble yourself by snapping the links together.
For me, 11 links made the perfect fit. Use 15mm per link as a guide and adjust the number of links according to your wrist size. A smaller version with 13mm links, suitable for women and children, is also available.
 

Print settings: 

• Filament: PLA
• Nozzle: 0.4mm
• Layer height: 0.2mm
• Supports: no

Notes:

• Before making a loop, the twisting might be pretty noticeable, and the links could feel like they come apart easily. But once you form a loop, the twisting goes away, and the links should stay together much better.