If available, you can order the watch here: https://www.makerfabs.com/open-smartwatch.html (Rectangular case, but the PCB is the same.)
See Open-Smartwatch-OS for the source code on GitHub. The main branch should be stable, the develop branch is usually more up to date and can be unstable.
@pauls_3d_thingson Instagram (Latest Updates)
#opensmartwatchon Instagram (See what the community creates)
pauls_3d_thingson Youtube (Tutorials + Instructions)
- Linus Tech Tips: It’s time.
- Hackaday: An Open Source Smart Watch you’d actually wear
- CNX-Software: LilyGo sells Open-Smartwatch open-source hardware ESP32 watch by “Paul’s 3D Things”
- hackster.io: Something ESPecially Impressive about the Open-Smartwatch Project