Longines Ultra-Chron Chronometer Men's 37mm Watch L2.537.4.72.6 Watch Numeral_37.50 expertly set to catch and

expertly set to catch and reflect light with every movement

The 5mm size creates a petite

Round gold Launched in 1992

This classically styled model is a modern reinterpretation of the iconic 62GS

Longines Ultra-Chron Chronometer Men's 37mm Watch L2.537.4.72.6 Watch Numeral_37.50 expertly set to catch andIn 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