Does micro rotor count as 'Unique Complication'? Hamilton 663, aka: Benrus 1000A. Long running argument between Benrus and UG over who was 1st to market with the Micro Rotor Automatic. Both seem to have been announced in around 1958. Love Hamilton, old and new, but wish they would offer something special like this in the current line. This movement came from a 33mm Thin-o-Matic. Seems like there is a lot Hamilton (& others) could do with a micro rotor automatic in today's 40mm & up form factors.