TT Factory presents a three-in-one watch: the Longines Pioneer, featuring a flyback chronograph! .1. With a diameter of 42mm, the bezel rotates bi-directionally and shines brightly. The bezel is equipped with strong luminescence, and the Arabic numerals glow through black small holes, synchronizing with the official website.2. The dial comes in black and blue, with the chronograph sub-dial at 3 o'clock, a small seconds sub-dial at 9 o'clock, and a large seconds hand for the chronograph in the center. The 6 o'clock position on the dial marks the Flyback function, making it a very convenient chronograph.3. The sapphire crystal has a slightly domed shape and features anti-reflective coating on both the inside and outside, allowing for smooth bi-directional rotation. The watch is equipped with a screw-in crown that is easy to grip and adjust, and the sealed case back is secured by six screws, providing excellent water resistance up to 100 meters.4. The stainless steel bracelet, along with options for a calfskin leather strap and NATO blue fabric in different versions, comes with an original folding clasp, accommodating various style preferences.5. It is powered by the original L791.4 automatic movement, which offers a power reserve of up to 68 hours.