Swiss made, manually wound, 21,600 vph/3Hz, 27 mm x 6.87 mm, 26 jewels, 50-hours power reserve. Functions include small seconds, hours, minutes, chronograph. A certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000 gauss. Free-sprung balance with silicon balance spring. Available with either gold plated or rhodium-plated finish and bridges with straight Geneva waves.