The Only Watch charity hosts an auction every two years to sell specially designed unique pieces donated by forty or so watch brands. Funds raised by this incredible auction go into researching forms of myopathy. To support Only Watch, Breguet has designed a unique timepiece inspired by the first Type XX commissioned for the French army in 1954. The 42mm platinum case is topped by a rotating graduated bezel; it houses the self-winding 584Q/1 chronograph movement fitted with the flyback function which provides a 45-hour power reserve. The matt slate grey dial has several layers: raised chapter ring graduated to 60, central disc with inset counters (small seconds at 9, hour counter at 6, day/night indicator at 3) and date display at 6. The Arabic hour numerals and two main hands have a luminescent coating. Unique piece – www.onlywatch.com