GUANQIN Men Women Couple Lovers Day Date Vintage Wristwatch Analog Automatic Mechanical Self-Wind Sapphire Crystal Stylish Wrist Watch Steel Luminous Waterproof Business Clock (Blue Men White Women) - GZFCMY, GJ16219QL

• Easy read automatic self-wind mechanical movement watch. Do not contain batteries, it is powered by the natural movements of your wrist. Mechanical watches must be worn at least 8 to 10 hours a day, if you do not wear it for a long time, the watch will stop automatically. At this time, you need to recondition the correct time and wear it. Operate the watch, to wind-up please whirl the button on the clockwise for 30 to 40 laps. This will then get the energy back and make the watch run properly. The watch is with calendar, tell your date anytime, anywhere, moreover it's with week and luminous function, it is charming and shining. See-through back cover allows you to observe the work of the movement at any time, feel the passage of time intuitively, and enjoy a different visual experience. Elegant, simple, fashionable and practical design suitable for business, casual or other occasions, which is a great gift choice for Christmas, birthday, anniversary, Father's Day and Valentine's Day. Stainless steel case and band, through long hours of glossy angled engraving, planning, design, precision machining and production processes made it durable. With ergonomic design, this watch is incredibly comfortable to wear. Whether you are working for long hours or engaging in outdoor activities, it fits snugly on your wrist, providing you with the utmost comfort. Double-open butterfly buckle is made of durable and skin-friendly material, convenient to put on and take off from your wrist. Synthetic sapphire crystal mirror, the hardness is the second after the diamond, not afraid of syringes and breaking, high temperature resistance and super corrosion protection, making your watch more durable and resistant to scratches and refraction. 50M waterproof, perfect for all types of business, casual, indoor, outdoor activities or daily use. In daily life, you can wear it to wash your hands and get in the rain, but please do not wear your watch when swimming, diving or taking a hot bath. We have strict quality control standards to ensure that every watch undergoes meticulous craftsmanship and rigorous testing. This watch possesses excellent durability, accompanying you for a long time. Do not use your watch at extremely hot or cold temperatures, which can damage your watch and shorten its lifespan. Keep your watch away from magnets as it can damage the movement. Please note that the display may be different and there may be color shifts.