Current Production
Ultra-Chron 43 mm
LONGINES L2.836.4.52.6
MSRP
$4,200 USD
Verified Aug 18, 2026
Case diameter43 mm
Case size43 mm
Lug-to-lug49 mm
Thickness13.9 mm
Lug width22 mm
Case materialStainless steel and sapphire
CrystalScratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides
Water resistance300 m
MovementAutomatic
CalibreL836.6
Power reserve52 hours
DialBlack
Bracelet or strapStainless steel bracelet
Specifications as published by Longines →
Last verified Aug 18, 2026