Watch Links with 1.75mm Filament pins.

pinshape

Saw a friend's sleek metal link watch and was inspired to give making a printed variant a try. Measured my own watch strap, which came in at around 24mm, and pretty much winged it on the rest. Ultimately landed on a link with dimensions of 24mm W x 14.5mm L x 5mm D, and 9.5mm from axle to axle right in the center. Keep in mind that this is just a single link - I haven't worked out a clasp or buckle yet. Included both the Rhino5 model and an STL file ready to print. To assemble, simply print out as many links as you like, then line them up and thread a length of filament through the holes. Trim the filament and repeat for as many pairs of links as you've got.