Bulova 1975 Accuquartz "Centenary"
Tuning fork shaped case with the 2242 accuquartz movement. Like the 214 Spaceview it was produced to celebrate the 100th Anniversary of Bulova but it seems to be (even) rarer as I've only ever seen one other one (gold plated) and it had a replacement 2182F movement. It's possible it could be a so-called "Swiss" Bulova. I've also seen a ladies' version with the same dial and the 230 movement.
The mineral crystal on mine has a couple of scratches so if anyone knows where to source a replacement one I'm all ears (case reference : 7579).