This only "Longines column wheel chronograph watch" L688.2 equipped with a new movement by the Longines and Swatch Group co-funded by other brands commissioned ETA movement research and development manufacturing plant, only for the Group's brand-specific. Following the revival of mechanical watches in the early 2000s and in keeping with the market's preference for the combination of mechanical chronographs with traditional timepieces, the new watch is also made to better suit the tastes and needs of consumers. Longines lead The wheel chronograph just caters to such market needs. As Longines's series, this movement inherited the Swiss modern mechanical watchmaking process. In 1878, Longines introduced the first 20-gauge 20-hour stopwatch movement, which uses a column-wheel mechanism (with a protective cover) to interlock the mechanical structure of the stopwatch, and such a device has been used Longines in the future launched the timer, whether it is the development of Pocket Watch Longines timer, such as the 19CH launched in 1889, 19.73 in 1887, 19.73N in 1909, launched in 1922 with a fly back function Of 19.73N, and 18.72 launched in 1829, or the 24-minute caliber Longines developed specifically for athletic events and other chronographs for the watch, including 13.33Z in 1913 and 1946 13ZN movement, or the 30CH movement introduced in 1947, these movements are used for different movement structure tailor-made column wheel system to control the driving of its timing function! The development of these chronographs records the history and achievements of Longines in timers and the timing of the world movement. The column wheel chronograph has also become a traditional and reliable mechanism in Longines timers. The Longines Column-Wheel Chronograph wrist The watch uses state-of-the-art technology to extend the tradition of superb watchmaking to the 21st century. This L688.2 self-winding movement of 27 stone, diameter 30 cm, thickness 7.90 cm, blue steel column wheel system control timing function (start, stop, zero), this drive transmission function is the traditional watchmaking process Extended, but also make this watch particularly artistic value of the collection. The column wheel timing system designed by ETA engineers is easy to operate and offers only the best timing system from start to stop and zero. In addition to exquisite design, this L688.2 movement also meets the demand for more precise timing. Combining the qualities of the times and the reinterpretation of elegance, tradition and movement, the three brand new Longines lead-wheel chronographs are a symbol of the great and tradition of contemporary watchmaking immersion in mechanical timers. The Longines Column-Wheel Chronograph (L2.733 / 749.4.52 / 72.x / L2.733.8.72.x) The first Longines Column-Wheel Chronograph watch design focus is classic and elegant. L688.2 movement of this watch can be equipped with 39 mm diameter stainless steel or rose gold case, silver or black dial set 13 time scales, and mining rhodium or rose gold toffee pointer. This table has a date window, 9 o'clock small seconds meter, 30 minutes continuous operation at 3 o'clock meter, 6 o'clock continuous operation 12 hours counter. This watch is located in brown or black crocodile leather strap, the internal movement through transparent sapphire mirror chassis at a glance. This watch is also available in a 40 mm diameter stainless steel case version. The Longines Column-Wheel Chronograph (L2.742 / 750.4.56 / 76.x / L2.742.8.76.x) For the second Longines Column-Wheel Chronograph watch, Longines watches are reminiscent of the 20th century, the success of the brand's traditional, elegant appearance. With a 39mm diameter stainless steel or rose gold case, the watch's precision operation of the L688.2 caliber transforms through a clear sapphire crystal mirror chassis. Pink toffee pointer with 8 pink time scales silver or black dial indicator time. The Longines Column-Wheel Chronograph also features a date window, a small seconds dial at 9 o'clock, a 30-minute counting plate at 3 o'clock and a 12-hour counting plate at 6 o'clock. This elegant watch is also available in a 41 mm diameter stainless steel case version. This chronograph watch with a high-tech movement can be paired with a brown or black alligator strap.