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Owners widely praise the Longines HYDROCONQUEST GMT for its excellent finishing, smooth winding action, and overall value, with some finding its build quality and colorways superior to higher-priced competitors. Reviewers and owners alike note its robustness as a traveler's dive watch with a true GMT movement. Some owners find the round markers at 6 and 9 disrupt dial symmetry, and the GMT hour markers are described as tiny and difficult to read. The date wheel can be mismatched on certain dial colors, and the bracelet clasp is noted as sharp by one reviewer. While some owners wish for a smaller case size, others find the 41mm comfortable. The bezel action is flagged as having bounce-back by one owner, though the brushed finish effectively hides wear. Overall, owners and reviewers rate the Longines HYDROCONQUEST GMT highly for its robust build and excellent value proposition.
3 Variants
Retail MSRP
$3,350
Low
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Avg
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High
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Static data
Case
41mm
Power Reserve
—
Movement
Automatic
Water Resistance
300m
01
Case Dimensions
Diameter41mm
Thickness12.9mm
Lug-to-Lug49.4mm
Lug Width21mm
02
Case Build
MaterialStainless Steel
Water Resistance300m
03
Crystal & Dial
CrystalSapphire
Dial ColorGreen
04
Movement
Caliber
TypeAutomatic
Beat Rate—
Power Reserve—
Jewels—
HackingNo
Hand-WindingNo
ComplicationsTime only
05
Design Language
Dial styleMatte
BezelRotating (dive)
Bracelet / strapLug-attached bracelet
HandsBaton
AI-detected from product image · 5/22/2026
In a nutshell
The Longines HYDROCONQUEST GMT (ref. L3.790.4.06.6) is an automatic diver watch, with a 41mm stainless steel case, 12.9mm thick, powered by the L844.5 movement. Water resistance is rated to 300m, under a sapphire crystal. Manufacturer MSRP is $3,350. The dial color is green.