
Octagonal Classic Color Contrasting 300m Waterproof Automatic Mechanical Men Watch. Sapphire Crystal Window: Durable sapphire crystal material ensures scratch resistance and clarity. Ultra-Long Battery Life: Provides up to 72 hours of continuous operation on a single charge. Comprehensive Quality Testing: Products undergo scratch, tensile, timing, drop, and water resistance tests. Third-Party Certifications: CE and RoHS certified by third parties with ISO 9001 and colorfastness standards. Customization Services: OEM/ODM, custom design, and sample making services available. Fast Sample Production: Sample production lead time is typically 3-7 days. Multiple Shipping Options: Supports DHL, UPS, FedEx, TNT, Aramex, air, and sea freight. After-Sales Support: Professional solutions provided for all after-sales service issues.