Men's and Women's Square Big Screen Sports Digital Watch Luminous Chronograph Waterproof Sports Watch Multi-function Chronograph Student Electronic Watch Features: 1.30ATM is waterproof and can rain, it has no effect on wearing and washing hands 2. Eco-friendly leather, comfortable to wear 3. IP plating, durable and wear-resistant specification: Product Name: Multifunctional Waterproof Electronic Watch Product material: ABS Product color: black, brown-green, camouflage Product size: as shown Waterproof level: maximum 50 meters depth waterproof Packing list: electronic watch*1, manual*1 Package weight: 60g Precautions: 1. The waterproof depth of this product reaches 50 meters (vacuum test), please do not operate the button underwater. 2. Avoid using in extremely hot or cold environments. 3. Avoid wearing in strong electricity, static electricity, high frequency environment. 4. Avoid using gasoline, detergent, spray, paste, paint, etc. to wipe. 5. The surface can be cleaned with soft cloth and water, and the surface cannot be cleaned with chemicals. 6. Long-term use of the light function will consume most of the power. 7. Since the electronic watch is composed of precision parts, non-professionals should not disassemble the watch.