Current Production
Ultra-Chron Carbon 43 mm
LONGINES L2.839.4.52.2
MSRP
$5,550 USD
Verified Aug 18, 2026
Case diameter43 mm
Case size43 mm
Lug-to-lug48.9 mm
Thickness14 mm
Lug width22 mm
Case materialTitanium and carbon
CrystalScratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides
Water resistance300 m
MovementAutomatic
CalibreL836.6
Power reserve52 hours
DialAnthracite
Bracelet or strapNylon strap, Black
Specifications as published by Longines →
Last verified Aug 18, 2026