[New Launch]: Longines introduces the brand new Avigation Flyback Chronograph watch! 1. With a diameter of 42mm, it features a bi-directional rotating bezel available in green, brown, black, and blue matte ceramic, with luminous Arabic numerals set against a black background. The official website is synchronized.2. The dial comes in green, brown, black, and blue, with the chronograph sub-dial at 3 o'clock, a small seconds sub-dial at 9 o'clock, and a central large second hand for the chronograph. The 6 o'clock position on the dial is marked for the Flyback function, making it a very convenient chronograph.3. The sapphire crystal has a slightly domed shape and is treated with anti-reflective coating on both the inside and outside, allowing for precise and smooth bi-directional rotation. The watch is equipped with a screw-in crown for easy adjustments, and the sealed case back is secured with six screws, providing excellent water resistance up to 100 meters.4. The watch comes with a stainless steel bracelet, green and brown calfskin straps, and a NATO blue fabric strap in different versions, all featuring an original folding clasp to meet various style preferences.5. It is powered by the modified original L791 automatic movement, which offers a power reserve of up to 68 hours and is certified by the Swiss Official Chronometer Testing Institute (COSC) for precision.