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LONGINES HydroConquest Noir
LONGINES

HydroConquest

Reference — 9 variants
Noir dial
L37804569
Size
39mm
Movement
Automatic
Water res.
300m
Caliber
Calibre L888
Reserve
72 heures
~$2,106
Description

The diver with modern proportions and a robust build. Equipped for various underwater adventures, it balances functionality with a timeless aesthetic.

10h09 take

"The established-Swiss pick: 39 mm, 300 m and the 72-hour L888 — under €2,000 on rubber, nearer €2,150 once you add the steel bracelet."

Specifications
ref. L37804569
Case
MaterialSteel
Diameter39mm
Water resistance300m
BezelDiver ceramic
Case backFond vissé
DialBlack
Movement
TypeMécanique à remontage automatique
CaliberCalibre L888
Power reserve72 heures
ComplicationsDate
Strap & Bracelet
MaterialRubber
BuckleDéployante
Author POV

At 39mm, this is the most wearable case in the HydroConquest range — small enough for an average European wrist without looking undersized on the water. What I flag here is the movement: Longines specifies this as a manufacture automatic caliber rather than the outsourced base movement used elsewhere in the line, which matters more to the final score than the green dial or the 300m depth rating most owners will never test. Steel bracelet, date at three, no surprises — this is the HydroConquest reference I'd point a first-time buyer toward.

All references
9 variants