Seiko M516 Voice Note Recording Watch from Ghostbusters - YouTube
TBT Seiko Voice Note M516-4009
Ghostbusters - Seiko M516-4000 Voice Note Watch - vintage - Very rare in this Mint condition, with original box - Identical to the watch worn by Bill Murray and others in the film - Catawiki
Seiko M516 'Voice Note' Watch - Equipment - GBFans.com Wiki