Longines Ultra-Chron Carbon Edition Black Dial 43MM Automatic L28394522

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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.

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

Dial color

• Anthracite

Hour markers

• Applied indexes

Hands

• PVD Grey polished hands

Specificities

• Swiss Super-LumiNova®

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

Material

• Nylon strap

Color

• Black

Buckle

• With titanium buckle

Magnetic resistant

• Yes

Chronometer Officially Certified

• Yes