Franck Muller Fast Tourbillon

The Franck Muller Fast Tourbillon, reference 7889 T F SQT BR, has a tourbillon making one revolution in five seconds in a 49.6 x 55 mm case. The case is 13.7 mm thick and rated to 30 metres. An openwork dial shows bevelled bridges, with hours and minutes displayed. The manual-winding mechanical movement has four barrels, 248 components, a Breguet hairspring and a Franck Muller escapement with a fixed escape wheel and reversed anchor. Its balance beats at 21,600 vibrations per hour, and the movement has a 50-hour power reserve, with engraving, rhodium plating, circular graining and hand beveling. A hand-sewn alligator strap fastens the watch.