The watch is sleek and surprisingly thin. Behind the dial you will find a micro-rotor 668 movement. I don't know that much about these micro-rotor automatic movements... there are several very similar grades ranging from 663, 668 and 666. The latter I think is aptly named as I find trying to reassemble one of these movements to be "the devil's work". Some parts are so small that it's hard to believe they could even make them - let alone that they serve a useful purpose.
The case is 10K yellow gold with a screw-on stainless steel back. The dial has embossed numerals and markers with pearlized dots. I'm not sure how to describe the textured dial... it sort of has a linen look to it and I'd hate to have to try to get it refinished. The date window at 6 is a very classy touch. Some modern Hamiltons have also adopted this design aesthetic.