Make your own scientific calculator watch

calcwatch

It’s been a long time coming, but someone’s finally resurrected the scientific calculator wristwatch. Billed as “the ultimate nerd status symbol,” the µWatch is made of off-the-shelf parts and contains 18 keys and a 16×2 line LCD screen.

Apparently the scientific calculator watch phenomenon has been dormant for about 20 years, as the Casio CFX-400 was the last of its kind sold back around 1987. The calculator watches you can buy today “are simple 4 function calculators” according to µWatch inventor David L. Jones.

There are links on Jones’ site for design plans and what appears to be an upcoming online store, but neither are active yet so you’ll have to try to build one based on the available photos for the time being.

CalcArm3

HP-02small

Techcrunch event

Join 10k+ tech and VC leaders for growth and connections at Disrupt 2025

Netflix, Box, a16z, ElevenLabs, Wayve, Hugging Face, Elad Gil, Vinod Khosla — just some of the 250+ heavy hitters leading 200+ sessions designed to deliver the insights that fuel startup growth and sharpen your edge. Don’t miss the 20th anniversary of TechCrunch, and a chance to learn from the top voices in tech. Grab your ticket before doors open to save up to $444.

Join 10k+ tech and VC leaders for growth and connections at Disrupt 2025

Netflix, Box, a16z, ElevenLabs, Wayve, Hugging Face, Elad Gil, Vinod Khosla — just some of the 250+ heavy hitters leading 200+ sessions designed to deliver the insights that fuel startup growth and sharpen your edge. Don’t miss a chance to learn from the top voices in tech. Grab your ticket before doors open to save up to $444.

San Francisco | October 27-29, 2025

More photos at CalcWatch.com

via DVICE

Topics

, , , , , ,
Loading the next article
Error loading the next article