Seiko Frequency
There are some Seiko Frequency watches on eBay being sold. The watch comes with a built-in drum machine, BPM Counter, small speaker, metronome, and all sorts of other shnazzy functions. Regarded as the DJ watch… It’s really a timeless design, so 1990s… I think Seiko should bring these puppys back for sale!
Update: There is also a green one for sale here!