It's a different kind of engineering, and hard to compare. The watch I'm wearing today was made in the 1950s, and keeps good time. I'd be amazed if the smart-

It's a different kind of engineering, and hard to compare. The watch I'm wearing today was made in the 1950s, and keeps good time. I'd be amazed if the smart-watches that people are wearing in the office today are still functional in 70 years.