TW Production presents the Golden Blue Black Circle, the first launch from TW, creating the strongest 1:1 top-level replica of the Cartier Santos-Dumont series X43. Parameters synchronized with the genuine product: Case diameter: 39.8mm; Movement: Swiss Ronda 4S20 modified mechanical movement; Case thickness: 9.08mm; Dial color: Hollowed-out; Dial shape: Square; SKU: Black, Silver with Silver Circle, Silver with Rose Circle, Silver with Gold Circle; Strap color: Black and Blue imported leather; Buckle type: Double folding clasp; Transparent back: Yes; Glass: Sapphire crystal; Hands: Blue PVD-coated hands; Black version features imported green luminescence; Crown: Gem-set crown. Please recognize TW's exclusive quality.