Adino Lava Set of 2 Faceless Samurai style watch. Energy saving, light turns off automatically after a few seconds when not being used.Shows hour, minute, second and date. Two function buttons for easy control.Stainless steel watch band with a clip to fit your wrist, Normal water resistant, NOT for showering or swimming.Color: Black . Case Size (Length x Width x Thickness): 45 x 25 x 10 mm / 1.77 x 0.98 x 0.39 inch. Band Size (Length x Width): 220 x 25 mm / 8.66 x 0.98 inch. How to use: The LED lava watch has two buttons which on the right side. The up button is A ,and the other is B. Then following the steps below: 1 )Press button A which shows the current time, and then press B you can see the hours is flashing, now press button A to adjust the hour you need it. 2) Press button B, you can see the minutes is flashing too, the press button A to make the minutes you needed. 3 )According to this method, adjust the year, month and date you required