l've always enjoyed nixie tube technology. I have a couple clocks with it that i think are fairly tasteful. I've seen quite a few nixie watches on Etsy. Most I think look bad. Often putting them in circular cases, or super thick cases. This one actually looks pretty tasteful in my opinion and has more reasonable dimensions/form factor (13.66mm thick)
I think it could be pulled off semi-well with a leather jacket and leather boots, but not sure if that's just hopium that it's not destined to look stupid. Curious other folks thoughts.
Disclaimer in case people pile on, my taste is usually pretty standard (eyeing panomaticlunar or Santos). This is just a niche interest of mine.
I've found that things that break all these theoretical sartorial rules don't really matter if you do it with confidence.