Color Shell TW debuts the strongest 1:1 top replica of the Cartier Santos Skeleton series. Parameters are synchronized with the authentic product. Case diameter: 39.8mm. Movement: Swiss Ronda 4S20 modified mechanical movement. Case thickness: 9.08mm. Dial color: skeletonized. Dial shape: square. SKU: black, silver with silver bezel, silver with rose gold bezel, silver with gold bezel. Strap color: black, blue, made of imported calfskin. Buckle type: double folding clasp. Case back: transparent. Mirror: sapphire crystal. Hands: blue heat-treated steel hands. The black version features luminous hands using imported green luminescent material. Crown: gem-set crown.