Ultra‑chron Carbon 43.00 mm

Self winding mechanical movement beating at 36'000 vibrations per hour, with a monocrystalline silicon balance-spring power reserve up to 52 hours.

Screw-in crown, Water-resistant to 30 bar, Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides.

Anthracite dial, Swiss Super-LumiNova®.

Nylon strap bracelet, With titanium buckle.

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.

Case

Shape : Round

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 & Hands

Dial color : Anthracite

Hour markers : Applied indexes

Hands : PVD Grey polished hands

Specificities : Swiss Super-LumiNova®

Movement & Functions

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

Strap

Material : Nylon strap

Color : Black

Buckle : With titanium buckle

General

Magnetic resistant : Yes

Chronometer Officially Certified : Yes