If you believe all watches go tick tock, then you definitely have not heard an Accutron. When it first came out in 1960, this Bulova watch was all kinds of cool. Unlike mechanical watches, it has a vibrating tuning fork as its timekeeping element. This 360 Hz fork gets its power from a transistor circuit, which makes Bulova's unique timepiece the first electronic watch. To show buyers the magic behind the humming watches, Bulova removed the faces of store models to reveal the movement underneath. There was an unexpected explosion of demand for these display versions and Bulova christened them Accutron Spaceview watches. Yet another special feature of the watch is the location of its setting stem and crown at the back in the 214 models. Some of the Accutron 218 watches have their setting stems and crowns at the 4 o'clock, rather than the traditional 3 o'clock position. The most popular watch in this line is the 218 Astronaut which bears Buzz Aldrin's autograph. Bulova may no longer sell humming Accutron watches or Buzz's limited edition, but you can still find these rare watches among the wide selection of vintage timepieces on eBay.