Over the past three years I have purchased three Invicta Signature 7000 series dive watches.  The oldest, a 7045, (black dial with gold accents), has the Miyota 8200 self-winding (automatic) movement that is hand-windable and with a one-way winding rotor mechanism.  Meaning that the movement of the rotor only winds the mainspring in one direction, which has always seemed inefficient to me. The Miyota 8200 series has been the standard automatic used by Invicta for a very long time, and the current (Dec 2012) close-up photos of all of these watches on Amazon show the older, Miyota movement as seen thru the glass case back.

 The second Signature I bought, about a year ago, is a 7049, (rose gold dial), and has a Seiko-made two-way winding action movement that IS NOT hand-windable.

  Finally, the subject of this review, the 7042, (blue dial), also has a newer Seiko-made movement that is two-way winding, hand winding AND hacking, meaning that the movement stops when the crown is pulled all the way out to the "second click" position.  Hacking, of course, allows for much more accurate time-setting.  I have no way of knowing if all newer Signatures are fitted with the improved movement.  In fact, I had thought that Invicta was phasing out the 7000 Signatures, so these upgraded movements are a surprise.  The 7042 feels just very slightly heavier that my other Signatures, and is just a shade thicker by slightly less than a full millimeter.  But the case diameter is still right at 40mm excluding the crown.  And the current Amazon price of the 7042 is slightly less ($4) than I paid for the 7045 at Amazon three years ago.  So, same apparently well-built watch, same bog-standard Invicta Oyster bracelet, new and superior movement, same price.  Hard not to recommend the 7042.