Almost an exact copy of the Seiko Z22 band.  However, the holes for the spring bars are too small to hold the oem Seiko spring bars, and it's really difficult to get them "threaded" into the holes.  Best advice it to use a little household oil or liquid soap to get them to go through.  I bought a genuine Seiko Z22, and the holes were larger so this wasn't a problem.  Nice quality, but for a few bucks more I'd go with the real Seiko Z22 band.