Philip Stein watches are not only eye catching, they also contain natural frequency technology that is believed to be beneficial to overall well being. Each watch contains a metal disk that has been infused with a combination of natural frequencies, which help to reset the body.  This classic tank chronograph watch has a stainless steel case and black dial with dual time zones.  Presented with a red ostrich band.  Change the look by swapping bands to black snake skin or turquoise alligator.