Amazing Sun Watch, probably 50s.
People thought multi-function watches only came around with the digital electronic Ironman, or Casio G-Shock? The 'TelZall 9 in 1' watch does a lot with zero electronics. Just look at all it does. It's even got a secretly concealed weather forcasting disc. Because the weather is a huge secret. I would love to have a mint-condition TellZall. I would wear it from time to time.