Quick release and full disassembly THB Santos hollow steel belt series first release parameters are synchronized with genuine products. Case diameter 39.8 mm movement Swiss Ronda 4S20 modified mechanical movement Case thickness 9.08 mm Dial color Hollow dial shape Square SKU black silver silver ring silver rose The silver gold ring strap is made of imported fluorine rubber quick-release buckle, which is made of Cartier's latest folding buckle. The back is a see-through lens, sapphire mirror hands, blue burnt steel blue hands, black luminous model, imported green luminous crown, gem-set crown.