Bad reliability.  The first one I got was DOA.  I had a shop here replace the battery before declaring it bad and sending it back, putting me out $20 for no good reason.  The second one died a little over a month later.  I had the same shop replace the battery this past weekend, to discover it was, again, a dead watch, and not a dead battery.  I'm now out $60 (the extra $20 was for band adjustment, which lasted all of 3 weeks) beyond the price of the watch.  I'm not buying another Invicta watch, that's for sure.