JB Roger Dubuis Excalibur Sidr (King Series) RDDBEX0479. This is the brand's most supercar sports style style. The appearance of the hollow flying tourbillon watch has the representative characteristics of Roger Dubuis hollow timepieces. It is synchronously original 45mm* 13mm titanium alloy case, star-shaped appearance design, Celtic cross-shaped tourbillon frame. It is equipped with a Shanghai-customized RD505SQ manual winding movement, which is the same as the original one. There are counterweight nails on the golden balance wheel. Compared with small manufacturers, the movement is more stable and has smaller errors. The similarity of the main body of the movement reaches 98. There are no redundant gears at the 11 o'clock and 4 o'clock positions of the movement. The movement plywood is arranged in an orderly manner with fish scale patterns, and the redundant calendar gears have been abolished. , for specific evaluation, please refer to the classic watermark-free video htts://v.qq.com/tx/iframe/layer.html?vid=s0928d564hu. Sapphire scratch-resistant mirror, imported Thai rubber raw material strap, high flexibility and exquisite workmanship. Original folding clasp. The watch is domineering and cool, full of style. It once became the standard watch for sports car enthusiasts and is highly recognizable. JB Factory - specially designed for high-end tourbillons. The famous Swiss watch is recommended for men. The famous tourbillon mechanical watch maker Swiss Watch carefully creates ultra-realistic photo shoots for you, Roger Dubuis