AAA level customized self winding mechanical movement which power reserve up to 40 hours. This Z series watch will come with two straps, one food grade silicone strap and one black genuine leather strap to meet your needs for different occasions. The case is made of Titanium material which is 40 percent stronger than stainless steel but 30 percent lighter than it. It also has the characteristics of high temperature resistance, lightweight, skin friendly, etc. Carved from titanium ensures life long durability and superior strength. With the Z series, you can hear the heartbeat of a movement.
