<b>Thickened case to protect its internal parts. Anti-drop and not easy to be worn-out. Square concave</b><br> <b>symmetry design, with the overall black color matching, it is of very cool sports style and personality.</b><br><br> <b>Specification:</b><br> Dial Color: Black Dial <br> Case Diameter: 1.9 inch / 4.7 cm <br> Dial Case Thickness: 0.5 inch / 1.2 cm <br> Band Color: Black <br> Band width: 0.8 / 2.1 cm <br> Band Length: 9.8 inch / 25 cm <br> (Suitable for 6.7-8.5 inch in circumference wrists to wear)<br> Band Clasp Type: Buckle <br> Watch Weight: 2.4 oz / 68 g <br> Battery Code: CR2025<br><br> Screw locked back cover, highly waterproof, easy to replace the battery.<br> 164FT 50M WATERPROOF, SWIM, SHOWER, NO PROBLEM! DESIGN for SPORT. 50M 5ATM water resistant.<br><br> <b>NOTE:</b> please DO NOT press any buttons in the water. Military 24H time mode and imported EL back light functions make it perfect for all kind of sport and daily use. <br><br> Material: Case Material: Silicon Rubber, Plastic Band Material: Silicon Rubber Mirror Surface: Mineral Glass Mirror<br> Ergonomic recess and rattlesnake tail-like texture with square hole band design. While accelerating perspiration, <br>it is of strong three-dimensional sense. Loops also consolidate stability of the strap<br><br> Large numbers on the dial and with EL Backlight, easy to read, suitable for viewing in dark environment, very convenient.<br><br> Multi-functional buttons, simple structure, easy to operate.<br> High quality material makes it lightweight and comfortable to wear.