Longines Ultra‑Chron Carbon, L2.839.4.52.2, Automatic Watch, Ø 43.00,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.

FEATURES

Lug Distance: 22 mm

Lug-To-Lug : 48.90 mm

Glass: Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides

Caseback: Screw-down case back

Magnetic Resistant: Yes

Offically Certified: Yes

Case Weight: 67.0 g

Case Thickness: 14.00 mm

Functions: Hours, minutes, seconds

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

Indexes: Applied indexes

Hands: PVD Gray polished hands

TECHNICAL DATA

MODEL: L2.839.4.52.2

COLLECTION: Heritage

SUB COLLECTION: Ultra‑Chron

DIAL COLOR: Anthracite

STRAP COLOR: Black

STRAP MATERIAL: Nylon

STRAP BUCKLE: With titanium buckle

MOVEMENT: Automatic

CALIBER: L836

CASE SHAPE: Round

CASE SIZE: 43.00 mm

CASE MATERIAL: Titanium and carbon

WATER PROOF: 30 bar