LONGINES ULTRA-CHRON CLASSIC 37 mm
Automatic watch, 37.00 mm, Stainless steel, L2.537.4.72.6
Date, self winding mechanical movement beating at 36'000 vibrations per hour, with a monocrystalline silicon balance-spring power reserve up to 52 hours.
Water-resistant to 5 bar, scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides.
Sunray silver dial.
Stainless steel bracelet, with double security folding clasp with micro adjustment system.
ULTRA‑CHRON
In 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 set new records in terms of accuracy. The new Ultra-Chron is inspired by the aesthetic codes and professional diving features of the 1968 model. These chronometer-certified watches are powered by an exclusive Longines calibre equipped with a silicon balance-spring and resistant to magnetic fields.
Model Number
L25374726Longines International Warranty
La Compagnie des Montres Longines, Francillon S.A. grants you, with effect from the purchase date, a twenty-four (24) month warranty on all Longines ® watches models and a five (5) year warranty on the automatic watches purchased from January 1, 2021, under the terms set out in this warranty.
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