Purchased this watch based on it's design and the fact it was self winding.  I realize that these watches are not as accurate as the newer solar, kinetic, battery powered units. This unit has been a mistake.  I have never owned a watch that runs as poor as this one.  It runs about 15 to 20 seconds a day fast.  I expected better quality control than this from Seiko. This watch is one of the best looking watches I have seen and the poorest quality.  I'm very disappointed at Seiko.