The first parameter of THB Santos hollow tape series is synchronized with the genuine product. Table 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 ring silver gold ring watch The strap is made of imported fluorine rubber quick-release buckle, and the buckle is made of Cartier's latest folding buckle. The back is a transparent lens, sapphire mirror hands, blue burnt steel blue hands, black luminous model, imported green luminous crown, gem-set crown.