BBRRM's latest upgraded V4 version original integrated double barrel integrated movement, the quality is more stable! Welfare gift, free one (cloth belt) 1. The watch case is made of white ceramic case, which is consistent with the original version. The details of the lead angle of the case have been reduced to be exactly the same as the original product. The bottom cover has been changed to a smaller visible light position, only protruding from the glass visible position. The details are also one of the most accurate versions currently! Upgraded a few details to make it more like the original genuine product. 2 movements re-developed the original RMUL2 integrated movement, the double barrel movement balance wheel can be clearly seen and moves. Say goodbye to fake plywood movements! 3. The diameter of the watch is the same as the original version, 49.90X42.70 mm, and the thickness is 13.5MM. 4. The material of the watch mirror is sapphire crystal with double anti-glare effect. 5. The material of the watch strap is natural rubber strap! 6 original latest version of the folding buckle. Richard Mille not only has superb watchmaking skills and is loyal to the spirit of traditional watches, but also advocates breaking through the existing rules and regulations, exploring new heights in watchmaking technology, and integrating new elements of the new century into traditional watchmaking. Through craftsmanship, comfortable, shock-resistant, durable, accurate and lightweight watches have become the first-class phenomenal brand in the watch industry. This Richard Mille RM is worth owning.