# Hatsuo Watch Features scratch-resistant sapphire crystal glass, a lightweight, high-quality titanium exterior, and a Seiko VH31 movement that smoothly sweeps the second hand like a mechanical watch. The luminous hands and markers glow beautifully in blue. These luxurious specifications are unheard of at this price point. This watch is inspired by the Seiko 5. It's very lightweight and perfect for everyday wear. Case diameter: 37mm Lug width: 20mm Solid titanium case Weight: 40g Recommended for fans of Hamilton, Khaki Field, Marathon, Naval Watch, MWC, CWC, MWT, Seiko, Citizen, Sinn, military watches, and American casual style.