Top quality Mens Luxury Jacob & Co. Quenttin Quenttin M Manual Winding Black Black Rubber watch has reliable quality and great design. It is an eye-catching Manual Winding watch which comes with Black Black Rubber bracelet. Transparent vertical mechanical movement with winding escapement in tourbillon cage dial is very convenient for reading. Solid Blue Magnesium case is very charming. This Square Mens watch has good water resistant function. The 56 mm x 47 mm watch is great in quality and design.