Hello,
I'm proud to present the results of my project!
A nixie tube watch,
Solder paste stencil, courtesy of the teachings of Sparkfun's stencil video
Parts toasted in the toaster oven courtesy of Adafruit's EZ Make oven
Girlfriend made me a cool logo 
(it's supposed to be an ohm symbol with little viking horns ((I know vikings didn't have horns on their helmets in reality)))
Seeing it come to life!
The bottom board sitting in the 3D printed enclosure
Some "internal" routing
When I mixed up the RX and TX pins and a failed 3.3v switching regulator on the first version (but of course the more complex 180v boost worked great)
The two boards stacked together
A bunch of notification LED's on the side, 6 for battery status and 2 for whatever I want.
It also has a MEMS microphone like the Red Board which is working, so theoretically I can add in some ML for voice recognition to set the time or turn on a high powered LED that is to be mounted on the front of the watch.
- BQ40Z80 battery fuel gauge chip (a fancy IC that manages the batteries)
- FTDI231x converter so I can program through the USB-C port
- USB-C charging
- 180V power supply
- PDM microphone
- Artemis (low power ML, processing, and Bluetooth)
- setup to add a high power LED extension
- Way too much battery (about 24 hours of always on time)
- Artemis & Arduino powered
- 3D printed enclosure
Thanks for taking a look!