... gold, rose gold, black, etcQualityCan meet the standard of SGS, ROHSLogoOEM is welcomePackageOpp bags, gift box, according your requestUnique ... Far infrared emissivity of germanium is 92.1%, its wavelength is 8-10 um, which is the optimal frequency and wavelength, ... , can reach 30 meters waterproof standard as the same as the original watch. This watch is equipped with waterproof device, can prevents ...