Casio G-Shock GD-X6900TC-5, part of the Camouflage series. This specific model is a larger, "beefed-up" version of the classic.

Key Features
Design: Features a distinctive tiger stripe camouflage motif across the entire case, band, and face.
Durability: Built with standard G-Shock shock resistance and a mineral glass display to prevent scratching.
Water Resistance: Rated for up to 200 meters, making it suitable for swimming and snorkeling.
Battery Life: Known for an impressive long-term battery life that can last up to 10 years.
Functions: Includes an Auto LED (Super Illuminator) backlight that lights up the whole screen, world time for 29 time zones, and a flash alert feature.