Longines ULTRA‑CHRON CARBON L2.839.4.52.2
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Shape
Cushion -
Material
Titanium and carbon -
Glass
Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides -
Case Back
Screw-down case back -
Dimension
Ø 43.00 mm -
Lug distance
22 mm -
Lug-to-lug
48.90 mm -
Thickness
14.00 mm -
Water Resistance
Water-resistant to 30 bar -
Case Specificities
Screw-in crown -
Weight
67.0 g
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Movement Type
Automatic -
Functions
Hours, minutes, seconds -
Caliber
L836 -
Movement Description
Self winding mechanical movement beating at 36’000 vibrations per hour, with a monocrystalline silicon balance-spring power reserve up to 52 hours
Longines ULTRA‑CHRON CARBON L2.839.4.52.2
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.
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