Longines HydroConquest 39mm Green vs Panerai Submersible QuarantaDue 42mm Grey

SpecificationLongines HydroConquest 39mm GreenPanerai Submersible QuarantaDue 42mm Grey
BrandLonginesPanerai
CollectionHydroConquestSubmersible
ReferenceL3.780.4.96.6PAM01683
CategoryDiveDive
Movement TypeAutomaticAutomatic
CaliberL888.5P.900
Power Reserve72h72h
Frequency25,200 vph28,800 vph
Case Diameter39.0mm42.0mm
Case Thickness12.2mm14.0mm
Case MaterialStainless SteelStainless Steel
CrystalSapphireSapphire
Water Resistance300m / 984ft300m / 984ft
Weight140g128g
MSRP$1,350$9,900
Market Price$1,100$8,100

In-Depth Comparison

The Longines HydroConquest 39mm Green and the Panerai Submersible QuarantaDue 42mm Grey represent two compelling options in the luxury watch market. Both timepieces have earned devoted followings among collectors and enthusiasts, but they approach horology from distinctly different perspectives. Let's break down how these two watches compare across the key dimensions that matter most to buyers.

Heritage And Brand Prestige

Longines and Panerai are both highly respected names in watchmaking. Both watches hail from Switzerland, benefiting from the region's deep horological tradition. This particular HydroConquest reference was introduced in 2020, while this Submersible reference debuted in 2023. The Panerai Submersible QuarantaDue 42mm Grey is the newer release, potentially featuring more modern technology and finishing.

Movement And Mechanics

At the heart of the Longines HydroConquest 39mm Green beats the L888.5 caliber offering a 72-hour power reserve running at 25,200 vph with 21 jewels. The Panerai Submersible QuarantaDue 42mm Grey is powered by the P.900 with a 72-hour power reserve operating at 28,800 vph featuring 27 jewels. Both watches offer identical power reserves, making them equally practical for daily rotation.

Dimensions And Wearability

The Longines HydroConquest 39mm Green features a 39.0mm case at 12.2mm thick with a 46.0mm lug-to-lug measurement, crafted in Stainless Steel. The Panerai Submersible QuarantaDue 42mm Grey comes in at 42.0mm and 14.0mm thick with 50.0mm lug-to-lug, constructed from Stainless Steel. The Longines HydroConquest 39mm Green wears more compactly on the wrist, making it potentially more suitable for smaller wrists or those who prefer understated proportions. At 128g, the Panerai Submersible QuarantaDue 42mm Grey is the lighter of the two.

Materials And Construction

The Longines HydroConquest 39mm Green uses a Sapphire crystal paired with a Unidirectional rotating, ceramic insert bezel, while the Panerai Submersible QuarantaDue 42mm Grey features Sapphire crystal with a Unidirectional rotating, ceramic insert bezel. On the wrist, the Longines HydroConquest 39mm Green comes on a Stainless steel bracelet with Folding clasp with safety push-buttons, while the Panerai Submersible QuarantaDue 42mm Grey is fitted with Grey rubber strap featuring Pin buckle.

Water Resistance And Capability

The Longines HydroConquest 39mm Green is rated to 300m / 984ft and the Panerai Submersible QuarantaDue 42mm Grey to 300m / 984ft. Both watches share the same water resistance rating, making them equally suited for aquatic activities.

Pricing And Value

At retail, the Longines HydroConquest 39mm Green lists for $1,350 compared to $9,900 for the Panerai Submersible QuarantaDue 42mm Grey. The Longines HydroConquest 39mm Green is the more accessible option at MSRP, saving $8,550 at retail. On the secondary market, the Longines HydroConquest 39mm Green trades around $1,100 while the Panerai Submersible QuarantaDue 42mm Grey commands approximately $8,100.

The Verdict

Choosing between the Longines HydroConquest 39mm Green and the Panerai Submersible QuarantaDue 42mm Grey ultimately comes down to personal priorities. For diving and water sports, the Panerai Submersible QuarantaDue 42mm Grey is the stronger choice. for value-conscious buyers, the Longines HydroConquest 39mm Green delivers excellent quality at a lower price point. for dress occasions and smaller wrists, the Longines HydroConquest 39mm Green is more versatile. Both watches are exceptional timepieces that will serve their owner well for generations. We recommend trying both on the wrist at an authorized dealer before making your final decision, as comfort and emotional connection are ultimately just as important as specifications.