Seiko is reissuing its Giugiaro 7A28-7000 watch, most famous for being on Sigourney Weaver's wrist for much of the running time of Aliens. The original watch was conceived by Italian car designer Giorgetto Giugiaro in the early 1980s, and is known for its blocky panel that houses chunky chronograph buttons to the right of the watch face. It was also the world's first watch to use an analog quartz chronograph movement.
The new "Seiko X Giugiaro Spirit Smart" reissues aren't quite identical to the 7A28-7000; there's no crown or extra button on the left side. But the '80s-futurist vibe appears to be intact, and the new versions are probably more practical and inexpensive than searching for an original on eBay. That said, they'll still be fairly exclusive; the grey SCED035 and black SCED037 watches are limited to 3,000 pieces each, and will set you back ¥32,000 (about $260) and ¥36,000 ($292) respectively.
Here are the new models:
And here's Sigourney Weaver as Ripley modeling the original watch in Aliens: