Some of the most recognizable and sought-after collectible watches weren’t all that expensive when they were new. One example of the low-end grail is the line of 7A28 Seiko chronographs designed by Italian designer, Giorgetto Giugiaro. These odd asymmetric watches were used in the 1986 film, “Aliens”, but were not considered collectibles at the time. Now they are so in demand that Seiko has reissued them as limited edition models in their home-market Spirit line.