Brand: Longines .Series: Concas 1:1 Wholesale Luxury .Movement: Exclusive custom Shanghai 9 series fully automatic mechanical movement, upgraded and improved version, mature technology, very stable .Case Material: 316L precision CNC engraving, ultra-precise .Dial: F factory's first use of Super-LumiNova luminous coating, luminous effect is very prominent .Case Diameter: 42MM, Thickness: 11MM .Product Level: Super A .Glass: Scratch-resistant sapphire crystal, coated with multiple anti-reflective layers .Buckle: Triple folding safety clasp with a push-button release, consistent with genuine products .Strap: Imported from Italy, comfortable and durable