This is a Fossil Blue outdoor sports diving quartz chronograph watch, model CH-2506. Model: CH-2506, Fossil Blue Diving Sports Series Movement: Japanese quartz chronograph movement, three-register chronograph, 24-hour display, date function Case: Fully polished stainless steel, approximately 46mm large dial, a large sports watch for men Water Resistance: 10ATM/100 meters, suitable for swimming and snorkeling, and worry-free for everyday hand washing and rain exposure Strap: Solid three-link stainless steel bracelet, adjustable to fit wrist circumference Crystal: Mineral hardened glass, resistant to minor everyday scratches Design Style: A classic American sports chronograph from the millennium era, featuring an angular polygonal case, contrasting numerals, and a three-register chronograph dial, balancing diving watch water resistance with workwear style; the blue and white color scheme softens the heaviness of pure steel, creating a clean and refreshing look. The watch functions perfectly.Overall condition: 99% new. The box is missing, but I will pack it carefully.