The Seiko SRPH31 is part of the Seiko 5 Sports Field series, inspired by classic military field watches and built for everyday durability. It blends utilitarian design with modern styling, most notably seen in its matte blue dial, which adds a unique twist to the traditional field watch look. Paired with a matching blue nylon strap and orange accents, it has both rugged appeal and subtle flair. Key Features: Movement: Seiko Caliber 4R36, automatic with manual winding, hacking seconds Case Size: 39.4mm diameter, 13.2mm thick Case Material: Brushed stainless steel Dial: Matte blue with Arabic numerals, 24-hour inner track, and day-date window at 3 o’clock Bezel: Fixed, brushed stainless steel Crystal: Hardlex Water Resistance: 100 meters Strap: Blue nylon NATO-style strap with orange lining and stainless steel hardware Lume: Lumibrite on hands and markers
