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The Longines ULTRA‑CHRON CARBON is praised for its lightweight composite case and unique "Batman" aesthetic, with its 5Hz movement widely noted for exceptional accuracy. Owners widely report the high-beat movement is the cheapest 5Hz option available. Some owners find the non-rotating bezel a relief, while others consider it a deal-breaker, noting the watch is no longer a dive watch. On balance, owners and reviewers highly rate the Longines ULTRA‑CHRON CARBON for its cool, lightweight design and the exceptional accuracy of its 5Hz movement.
1 Variant
Lume:Super-LumiNova
Retail MSRP
$5,550
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Static data
Case
43mm
Power Reserve
52h
Movement
Automatic
Water Resistance
300m
01
Case Dimensions
Diameter43mm
Thickness14mm
Lug-to-Lug48.9mm
Lug Width22mm
02
Case Build
MaterialTitanium
Water Resistance300m
CasebackScrew-down case back
03
Crystal & Dial
CrystalSapphire
AR CoatingBoth sides
Dial ColorAnthracite
IndicesApplied indexes
LumeSuper-LumiNova
04
Movement
Caliber
TypeAutomatic
Beat Rate36,000 vph (5.0Hz)
Power Reserve52 hours
Jewels—
HackingNo
Hand-WindingNo
ComplicationsHours, minutes, seconds
05
Design Language
Dial styleMatte
BezelRotating (dive)
Bracelet / strapFabric strap
HandsBaton
AI-detected from product image · 5/22/2026
In a nutshell
The Longines ULTRA‑CHRON CARBON (ref. L2.839.4.52.2) is an automatic diver watch, with a 43mm titanium case, 14mm thick, powered by the L836.6 movement and a 52-hour power reserve. Water resistance is rated to 300m, under a sapphire crystal, with hours, minutes, seconds complications. Manufacturer MSRP is $5,550. The dial color is silver.