We have covered plenty of cool Nixie wristwatches here in the past. Many of them have only two bulbs though. The Titanium Nixie Tube Wristwatch has 4 tubes (IV-9). It can serve as an alarm clock but can display battery juice too. The watch measures 60mm in diameter.
More gadgets like this: here
This Nixie wristwatch runs over 20 days on battery. MagenKening is selling this on Etsy.
Nixie wrist watch " Titanium " , 4 bulbs lamp IV-9, alarm clock, showing battery power.
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