By now, everyone is probably at least somewhat familiar with the SR-71. It seems to grace the pages of HODINKEE with regularity. And it's easy to see why: It's one of the most impressive bits of technology humankind has ever created. It's an absolute marvel. Lesser known is its predecessor, the A-12, which was based on a design brief meant to address the shortcomings of the U-2 spy plane. What you might not know about, however, is that pilots of both those planes, and the experimental X-15, all wore Bulova Astronaut watches.