The very first tuning fork Bulova in my collection was, and still is, this Accuquartz with a three facet crystal and blue dial. Refurbished by Rob B. Also thank you to Archie Goodwin for some crucial pointers as I planned that first tuning fork acquisition.
I was fortunate to find this Bulova bracelet for it (below) in just the right size, on a watch I didn’t keep.
Also, when the second hand passes under either of the horizontal facet edges at the correct angle, it can look like very much like a lightning bolt.