[New Release]: Longines Pioneer launches a brand new flyback chronograph wristwatch! .1. With a diameter of 42mm, it features a bidirectional rotating bezel available in matte green, brown, black, and blue ceramic. The Arabic numerals are luminescent and separated by small black holes, in sync with the official website.2. The dial comes in green, brown, black, and blue options, with the chronograph sub-dial at 3 o'clock and the small seconds sub-dial at 9 o'clock. The central large second hand serves as the chronograph's main second hand. The 6 o'clock position on the dial indicates the Flyback function, making it a very convenient timing chronograph.3. The sapphire crystal has a slightly arched surface, with anti-reflective coating on both sides, ensuring a smooth and precise bidirectional rotation. The watch is equipped with a screw-down crown that is easy to grip and adjust, while the sealed case back is secured by six screws, providing excellent water resistance up to 100 meters.4. Available 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 diverse wearing style needs.5. It is powered by the modified original L791 automatic movement based on the 7750 caliber, offering a power reserve of up to 68 hours and certified by the Swiss Official Chronometer Testing Institute (COSC) for precision.