Completed Nixie Watch

Design and Prototyping

First Prototype (Handmade Bezel)

Personal "Production" Unit (Note engraved Russian Cyrillic). I wear this a few times a week.

This is, to the best of my knowledge, the smallest Nixie watch built. A few people have built two and four tube models, but I didn't think that they were "practical"...

The 4-tube watch sold for $500, and 25 were built. The two-tube watch was never taken beyond "prototype". The guy who built it is, however, close to building a "production" model.


Specifications:


Size: (not including band or pushers) 2 1/8" x 1 1/8" x 1 1/8" (with tube, approx) watch body alone: 1/2"

Tube type: IN-17 Russian Nixie tube

Construction: Thermoplastic body with magnesium faceplate; silicone rubber band

Power source: 2.4V nominal NiMH rechargeable, rated 500-600 cycles, non-user-replaceable

Est. usage time: 1-2 weeks normal use between charges

Accuracy: +/- 10 seconds a day (when worn)

Processor: Ubicom SX-20 at 32.768 Khz

Features:

Day/Date displayed via day/date pushers

All adjustments to day/date via pushers

DD-MM-YY or MM-DD-YY mode selectable upon reset

12/24 hour mode selectable upon reset

Leap year accuracy until 2099

US Daylight savings time compensation mode selectable upon reset, accurate for most of the US until 2099 or until the law changes


Yes, I actually wear this!