Ultra‑chron Carbon Collection_Chronomat Tachymetric & pulsometric scales

Tachymetric & pulsometric scales

Calories burned

Thickness (mm): 13

Today’s Premier also lives up to Willy Breitling’s uncompromising technical standards with its exceptional self-winding movement—the COSC-certified Breitling Manufacture Caliber 01—designed for maximum precision

Ultra‑chron Carbon Collection_Chronomat Tachymetric & pulsometric scalesIn 1968, Longines launched the Ultra Chron Diver, the first dive watch equipped with a high frequency movement. At the time, Longines had already established itself as a pioneer in high frequency technology. As early as 1910, the winged hourglass brand created the first high frequency timekeeping device capable of measuring 1 10th of a second. In 1959, Longines developed the first high beat movement for a wristwatch, an observatory chronometer that