DS Master is equipped with a cutting-edge movement, with chronograph function and astronomical accuracy with astronomical certificate. The dynamic case is complemented by a black PVD-plated stainless steel bracelet. The stylish oversized design, the 45-degree beveled toothed bezel gives people a wonderful visual enjoyment. Under the anti-reflective crystal glass is the black dial, which can be timed for 12 hours and 1/10 seconds, and there is also a small seconds counter. More detailed timekeeping can be achieved with the chronograph minute and second hands in addition to the standard hands. The hours and minutes main hands are cut out in a see-through shape to maximize the visibility of the components below. The central chronograph hand reading is an internal scale on the edge of the main dial. The date window is at 4 o’clock and is displayed horizontally. This watch is equipped with Certina DS dual insurance concept system, which is waterproof to 10 bar (100 meters). The toothed crown engraved with DS and the two chronograph buttons are polished, dazzling, and equipped with a thick PVD coating with a thick spinlock protective cover. The soft round caseback gently wraps around the wrist, making this 45mm diameter chronograph watch easy to slip after wearing. Black PVD stainless steel bracelet with foldable safety clasp and extended diving links. In addition, the gold model has been released, and some surface areas are made of stainless steel and black PVD coating. The stainless steel bracelet is decorated with black PVD coating on the middle link. All models carry a certificate from the Observatory. Certina DS MASTER black watch