I think this watch was originally part of a men's cologne package. Black in color, the band is very adjustable and flexable, probably some sort of rubber material. It has a movable ring around the face which has numbers on it reading every ten minutes to an hour. There are two buttons on the left side and one button on the right below the stem. It has a window for a digital readout at the bottom of the face which is labeled tachymeter on the left and Km/h on the right. I think it is some kind of sport watch but I have no clue what to do with it. Any help would be appreciated.