... /off 3.Interchangeable face 4.waterproof quartz Silicone slap watch strap: 1.Movement:Top Quality Grade A Quartz Movement2.Specifications:25 ... (W),4cm(D)3.Case Material:100% silicone4. strap Material:Silicone + sheet iron5.Strap Color: 13 colors ; Pink , Black, White, purple, green ...