Accurate time: The high-precision automatic movement is based on the natural movement of the human arm, ensuring the accurate time without a battery. (Auto watches must be worn for at least 8 hours a day to maintain performance.) Classic Luxury Design: The circular watch dial expands the functionality of the anti-reflective sapphire crystal dial. A refined metallic luster look makes this men's watch suitable for every occasion. Waterproof depth up to 200 meters: suitable for all kinds of business, leisure, indoor or daily activities, can withstand splashes and sweat. Easy to adjust: scratch-resistant sapphire crystal, stainless steel case and bracelet Wear-resistant stainless steel bracelet is adjustable for comfortable wearing. Packaging and Service: This exquisite self-winding mechanical watch is beautifully packaged in a box and is a great gift for fathers, husbands, friends and business partners.