Movement type: automatic mechanical movement Movement function: 3 hands/calendar, 28,800 times per hour (4Hz) frequency, stop-second device, one-way Automatic winding, 36 hours of energy storage. Product features: automatic date, moon phase, 24 hours, week display! Case technology: brushed sand and polished case back material: 316L stainless steel Bottom cover type: screw-in bottom cover Strap material: high-quality leather Mirror coating: anti-glare blue coating Surface color: luxurious golden white Hand size: 8 * 12 * 12mm (hour hand * minute hand * second hand length) Waterproof rating: 30 meters waterproof / diving [can wash hands, swim, meet all daily waterproof purposes] Warranty...