Hamilton H36646780 Jazzmaster Performer Autochrono 42mmProduct Overview The "Jazzmaster Performer Auto Chrono 42mm" adds a new expression to timeless style. While maintaining its signature sportiness, it brings a contemporary feel to a daily watch. The outer ring displays the time, and the three chronograph counters measure hours, minutes, and seconds. Housed in a stylish PVD black case and paired with a black leather strap, the "Jazzmaster Performer Auto Chrono 42mm" is equipped with the H 31 movement,