# Hatsuo Watch Features scratch-resistant sapphire crystal glass, a lightweight and high-quality titanium exterior, and a Seiko VH31 movement that smoothly moves the second hand like a mechanical watch. The luminous paint also glows beautifully in blue. It's an incredibly luxurious specification for this price range. This watch is inspired by the Seiko 5. It's very lightweight and perfect for everyday use. Case diameter: 37mm Lug width: 20mm Solid titanium case Weight: 40g Recommended for those who like Hamilton, Khaki Field, Marathon, Naval Watch, MWC, CWC, MWT, Seiko, Citizen, Sinn, military watches, and American casual styles.