Longines Unveils The Ultra-Chron Carbon: Precision In A Cutting-Edge Material
The Longines Ultra-Chron returns in a bold new iteration for 2025, marking a significant evolution in the brand’s storied dive watch lineup. First reintroduced in 2022 as a revival of the 1968 reference 7970, the Ultra-Chron now debuts with a cutting-edge carbon case, a material never before used by Longines. This innovative approach combines the watch’s heritage with modern performance and lightweight durability.
The new Ultra-Chron Carbon retains the robust proportions of its stainless steel predecessor, boasting a 43mm diameter, a thickness of 14mm, and a lug-to-lug measurement of 49mm. Slightly thicker by just 0.10mm compared to the steel version, the watch maintains a sleek profile while offering rugged performance. It features a scratch-resistant sapphire crystal, a titanium screw-down crown and case back, and a fixed bezel with an aluminum insert showcasing a grey diving scale. With 300 meters of water resistance, this dive watch is built to withstand the toughest underwater adventures.
Its sandblasted anthracite dial delivers a refined yet functional aesthetic, enhanced by applied dark indexes and hands filled with Super-LumiNova for excellent legibility in low-light conditions. A minute and second track adorns the outer edge, while the Longines logo and Ultra-Chron branding are prominently displayed at 12 and 6 o’clock, respectively, adding to the dial’s balanced design.
Powering the Ultra-Chron Carbon is the automatic Caliber L836.6, a Chronometer-certified movement by Timelab. Featuring a silicon balance spring, this high-frequency caliber operates at 36,000 vibrations per hour and provides a reliable 52-hour power reserve. With 25 jewels and exceptional precision, it mirrors the performance standards of the steel model.
Completing the package is a black fabric strap with a titanium buckle, contributing to the watch’s impressively lightweight build of under 80 grams. This striking timepiece, designed for modern divers and collectors alike, will be available in January 2025 at a price of USD 4,900, blending heritage, innovation, and style into a single remarkable creation.
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General Specifications:
Brand: Longines
Model: Ultra-Chron Carbon
Dial: Anthracite
Lume: Super-LumiNova
Case Material: Carbon
Case Dimensions: 43 mm Diameter, 14 mm thick, 49 mm lug-to-lug
Crystal: Sapphire glass
Case Back: Titanium
Water Resistance: 300 Meters
Strap: Black fabric strap with a titanium buckle
Calibre: L836.6
Functions: Hours, minutes, seconds
Winding: Automatic
Frequency: 5 Hz (36,000 Vph)
Jewels: 25
Power Reserve: 52 Hours
Price: USD 4,900
Limited Edition: No
Availability: January 2025
