Longines paid tribute to some of the timing mechanisms developed over its history, with the launch at BaselWorld of a column-wheel chronograph. The watchmaker's association with timing equipment began more than 100 years ago, in 1878 when it launched a simple, 20-line chronograph. It has since devised a collection of measuring equipment which formed the basis for its involvement in the timing of sporting events. As a result, the mechanical, column-wheel chronograph became a technical device in the Longines workshops. The new Longines Column-Wheel Chronograph is the next step in the timing field for the watchmaker. At the heart of the watch is the L.688.2 movement, a self-winding calibre with a blued steel column wheel which controls the chronograph functions. Longines and other brands in the Swatch Group - its parent company - pooled resources and backed the development of the calibre which is now produced by its movement making division, ETA. The watch case housing the movement was inspired by the watch styles associated with Longines' success in the 20th century: classical, elegant lines made from stainless steel, gold-plated dauphine hands and a silvered dial with gold-plated applied hour symbols. Chronograph counters are positioned at 9 o'clock, 3 o'clock and 6 o'clock. Elsewhere, Longines added novelties to its Sport collection with new models in its GrandeVitesse and Longines Admiral series. The GrandeVitesse was inspired by some of the fastest men in history and was designed for the more daring sportsmen. The new GrandeVitesse Chronograph 24hr features a double tachymeter on the bezel which can measure ground speeds of up to Mach 2. Aerodynamic curves characteristic of the series are evident in this 44mm watch, which comes with a steel bracelet or leather strap. The watch is fitted with the L686 movement, also used in the more elegantly designed Longines Admiral series. Three models are added to this series. The first is a dual-time zone watch with a 24-hour graduation scale, and ceramic bezel in black or grey and a steel case, also with links in ceramic. The material is also used in the second new model, which is a chronograph featuring a ceramic bezel tachymeter. The self-winding watch features safety measures characteristic of the Admiral series such as a case with a screw-in back cover, and lateral protection for the crown and push-pieces. Other characteristics include the large 12 numerals, as well as minute and small seconds counters at 3 o'clock and 9 o'clock respectively. The third new addition to the Longines Admiral series is the Chronograph 24h with a second time zone. Also for men, the Longines Weems Second-Setting watch is a tribute to the Weems navigation system invented by US Navy Captain Philip van Horn Weems. He patented a wristwatch which enabled navigators to synchronise it with a radio-time signal to the second without the need to adjust the hands, but by the use of an external bezel or central dial, instead. Two years ago Longines celebrated the invention with a steel reproduction of the Weems mechanical watch, and this year it added an 18 carat rose gold version. The self-winding watch has an opaline silvered centre dial which synchronises to the second via a radio time signal. The rose gold case has an engraved back cover, which lifts to reveal a sapphire plate showing the movement. Longines once again shows its affection for the art deco movement with its eighth tribute to the period. Launched in 2002, Les Elegantes de Longines adds to its collection each year, and this time reveals three white gold jewellery watches. The timepieces feature oval, rectangular and almond-shaped cases with art deco motifs and diamond settings.