Nowadays, you can just get an Alexa ring, and it will do square roots.Funny you say that. when I was a senior in high school (1980), my mom and stepfather were living in Iraq. They often shopped in neighboring Kuwait (nicer stores). That year, for Christmas, they bought my brother and me the latest Seiko digital watch that had a calculator built in! This was CUTTING EDGE SH*T at the time! Those watches were $300... in 1980 dollars. Expensive. This is the watch:
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I think the esthetics still hold up today. In fact, I think it looks better than today's calculator watches.
My brother and I returned to school (in small-town Arkansas) after the Christmas break, thinking we were the "sh*t!" LOL! And, the watches DID get a lot of attention, since nobody had ever seen anything like them.
I went to look for mine just the other night and couldn't find it. I swear I still have it somewhere! I gotta find it. NIB examples sell for $800+ today. Trashed examples sell for $200+.
Plus, read your email, book appointments, do some shopping, read your Kindle books, etc....
Who needs a watch?