1. Adopt 316L precision-coated case (150 meters waterproof) 2. Citizen Wu Zhu strap comes standard with solid stainless steel double-headed strap and case link 3. Noise reduction and shock-absorbing inner cover 4. Original protective film on the entire watch Movement: 100% pure new machine imported from Japan (model 8215) Case material: 316L stainless steel Table diameter: 41MM Thickness 11MM Glass: Resistant Worn Sapphire Crystal Steel Buckle: Double Folding Safety Clasp Strap: Positive 316L Steel