SEIKO QUARTZ CHRONOGRAPH SPORTS 100 ... GIUGIARO DESIGN (ALIEN) 7A28-7000 ... From 1980's  ... Powered by the mighty 15 Jewel SEIKO 7A28A ... The watch is missing the detachable Chronograph  Button Unit and the SEIKO Bracelet ... See pictures for details ... GIUGIARO DESIGN made two types the Black & the Silver ... The silver was the one worn by Ripley in the movie called ALIEN ... This watch is sold as is for parts or restoration ...  Black case looks good for its age with some brassing ... Crystal is scratched and will need to be replaced ... The dial looks very good however the chapter ring has failed and will also need to be replaced ...  I installed a new battery and the 10 second Dial responds and resets but that's it  ... The movement looks good but needs service ... Sold as is for parts or restoration ... I think this could be a nice watch in the right hands ... Starting a just $4.99 ... Somebody is going to get a great project watch cheap!! Thank you & good luck ... Priority Mail Shipping With insurance ... QUESTIONS JUST ASK