This is an Accutron Spaceview 21 that is run by an internal generator. Has the hour, minute and date. The workings are skelletonized. Sapphire crystal. A very rare watch. Stainless steel with gold trim. The time and date setting is on the back of the watch. A C ring pops up and when finished you fold it back down. There is no crown on the side, just like the original Accutrons. The other connector on the back of the watch is for the kick starter power booster to get it started. After that, the generator takes over and is powered by your movement. This isn't the new Citizen owned Bulova Accutron. The Spaceview 21 was created when Bulova still owned Accutron. You can even see the generator weight from the front of the watch. A pointer shows the date. Only 1,000 of these watches were made. A truly unique watch. The new Citizen owned Accutron works the same as the Spaceview 21, but not for $3,600+. Cash only. Might trade for US gold or silver coins. Please don't present fakes. I'll know the difference. No low ball insult offers. If you think it's insulting, it is. Watch has been worn three times. Will never need battery changes, ever. Fits extremely well on the wrist. Comes with original box and papers. https://www.youtube.com/watch?v=L55T39vmJ1k