... mixed MAGMA-Q&Tourmaline2. This silicone sport watch can emit negative ions and infrared which made you calm, soothe and relax ... . Light weight, fashion design, water resistance (1-3-5ATM)4. Negative ion emittance about 1700-19005. Far infrared ray emittance(more than ... price with good quality.11. This is a sport watch, ion watch, fashion watch, silicone watch, wrist watch, rubber watch and ...