SJ Presents Carbon Fiber .The new Franck Muller RM3 FM introduces the Grand Central Tourbillon, a central tourbillon wristwatch.Franck Muller has launched a new tourbillon watch, the Grand Central Tourbillon, which features a unique central tourbillon structure, making the slowly rotating tourbillon the visual focal point of the dial.The Cintree Curvex barrel-shaped case has been redesigned with slender and smooth lines, with the sapphire crystal extending to the lugs at both ends, giving the dial a more spacious and open appearance. The case is made of carbon fiber, exhibiting delicate textures, where the black and gray stripes of the carbon fiber create a subtle aesthetic that is both captivatingly elegant and abstractly casual.The lacquered dial is paired with eye-catching oversized Arabic numeral hour markers, and the guilloch
