Not as retro as you are probably thinking but I bought one of these 20 years ago and I still love it. Sadly I can't wear it any more as my wrist is a lot smaller now (no idea why?!), the strap cannot be adjusted without permanently cutting it and replacements can't be bought any more - at least not for sane money. One day I'll find a suitable replacement strap and start to wear it again.
Mind you, very difficult to live without my Apple Watch now that I've had one for a couple years!