The Casio GShock Men's Watch in the DGK edition is a stylish and durable wristwatch designed for men. Made by the reputable brand Casio, this watch features a variety of useful functions and a sleek design. While the watch itself does not require battery replacement, the light feature on the watch does require battery power to operate. With the reliability of Casio and the specific needs of the light feature, this watch is a practical and stylish accessory for any man's wardrobe.