New
ULTRA CHRON CLASSIC
L2.537.4.72.6
HK$28,600.00
ULTRA CHRON CLASSIC, L2.537.4.72.6, automatic watch, Ø 37.00 mm, stainless steel.
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.
Case size:
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.
Case
Shape
RoundMaterial
Stainless steelGlass
Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sidesDimension
Ø 37.00 mmLug distance
19 mmLug-to-lug
44.60 mmThickness
10.95 mmWater Resistance
Water-resistant to 5 barWeight
122.0 g
Dial & Hands
Dial color
Sunray silverHour markers
Applied indexesHands
Silvered polished hands
Movement & Functions
Movement Type
AutomaticFunctions
Hours, minutes, seconds and dateCaliber
L836Movement 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
Stainless steelBuckle
With double security folding clasp with micro adjustment system
General
Magnetic resistant
YesChronometer Officially Certified
Yes