PU strap is soft and comfortable to wear.LED binary display provides challenging time recognizing. Designed with date and week functions.Electronic movement ensures accurate time keeping and easy maintaining.Adjustable strap with pin buckle can fit your wrist comfortably and securely.Daily waterproof design is enough to meet your needs. CHANGING THE STRAP The links are easy to remove and replace with the strap you want, they don't break easily and are less prone to wear and tear. LED DISPLAY Clearly visible with any number, the creative binary time and date mode display is sure to turn heads and win compliments on any occasion. COMFORTABLE TO WEAR The adjustable strap with pin buckle fits comfortably and securely around the wrist and is suitable for any wrist size.