Hamilton Khaki Aviation Pioneer Mechanical Chrono 40mm Watch

Hand-wound mechanical movement watch with 60-hour power reserve. Caliber H-51-Si is distinctive in that it features an anti-magnetic silicon balance spring. Chronograph functions for seconds and small seconds. Absent date function. Steel case 40 mm in diameter, is water-resistant to 10 bar/100 meters. Distance between lugs 22 mm. Brown cowhide leather strap with visible stitching, 22 mm wide buckle. Anti-reflective, scratch-resistant sapphire crystal, slightly domed. Black dial with two smaller dials for small seconds functions. Glow-in-the-dark hour markers. Watch accompanied by official Hamilton box and 2-year warranty.