Solid State Watch.

This is a recreation of the Solid State Watch from https://cwandt.com/products/solid-state-watch This is the case for the watch internals that you can take from the Casio F91W-1 https://www.casio.com/us/watches/casio/product.F-91W-1/ Take the internals out, and put them into this pre-made watch case and cast it in resin. The material it was designed for was PETG Transparent Clear however you can use PLA and it should get the job done! Happy building!