Digital DIESEL wristwatch with nylon strap. - Brand: DIESEL - Model Number: DZ184 - Strap Material: Nylon - Color: Gray - Digital Display: Yes - Back Design: With logo All tags and instructions are included. This color is sold out and therefore valuable. Other colors are currently on sale at Zozo. I only use Apple Watch, so I haven't used this much. It is working, but I don't know when the battery will die. Thank you for looking.