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Deal.ai › Longines
Longines
Longines HydroConquest 39mm Blue Dial Steel Men's Watch L37804966

Longines HydroConquest 39mm Blue Dial Steel Men's Watch L37804966

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$2,000.00at Time Machine PlusChecked Nov 9

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Price facts

  • Last seen at $2,000.00 at Time Machine Plus on Nov 9.

Our take on the Longines HydroConquest 39mm Blue Dial Steel Men's Watch L37804966

The Longines HydroConquest 39mm is a stainless steel dive watch with a blue dial, a ceramic bezel insert and 300 m of water resistance. Its 39 mm case and roughly 47 mm lug-to-lug make it one of the more wearable Swiss divers, and the L888 automatic movement with its silicon balance spring is a step above the off-the-shelf movements used by many rivals at this level. It suits people who want a genuine dive watch that works under a cuff as well as on a strap. Against the Tudor Black Bay 58 and Oris Aquis it gives up some brand cachet and bracelet refinement, but it matches them on water resistance and beats most of them on movement technology for the money.

Best forDaily wear on a steel braceletSmall and mid-size wristsFirst serious Swiss dive watchSwimming and snorkeling
Pros
  • 39 mm case wears well on smaller wrists
  • 300 m water resistance with screw-down crown and case back
  • Ceramic bezel insert resists fading and scratching
  • L888 movement with silicon balance spring and about 72 hours of reserve
  • Sapphire crystal with anti-reflective coating on both sides
Cons
  • Bracelet clasp is bulky and lacks on-the-fly micro-adjustment
  • Bezel action is firm and not as crisp as Tudor's
  • No date-free option; date window cuts into the dial
  • Polished center links show scratches quickly

Longines HydroConquest 39mm Blue Dial Steel Men's Watch L37804966 prices at every store

  • Time Machine PlusNew

    In stockReturn policy

    $2,000.00Checked Nov 9
    Visit Time Machine Plus

What reviewers say

Owners rate the 39 mm HydroConquest as a well-built, comfortable diver that punches above its class on movement and finishing. Most criticism centers on the clasp and bracelet rather than the watch itself.

What people mention
  • Size and fitPraisedOwners say the 39 mm case sits comfortably and suits smaller wrists better than the 41 mm version.
  • MovementPraisedThe L888 is reported to run accurately with a long power reserve.
  • Bracelet and claspCriticisedReviewers find the clasp bulky and wish it had tool-free micro-adjustment.
  • BezelMixedThe ceramic insert is liked, but some find the bezel action stiff and less precise than rivals.
  • Build qualityPraisedOwners describe it as solid and well finished for a Swiss diver at this level.

About the Longines HydroConquest 39mm Blue Dial Steel Men's Watch L37804966

The Longines HydroConquest is a men's dive-style watch with a 39 mm stainless steel case and a sunray blue dial. The dial has applied Arabic numerals and indexes, silvered polished hands and a date display.

It has a self-winding mechanical movement, caliber L888, that beats at 25,200 vibrations per hour and has a power reserve of about 72 hours. A unidirectional rotating bezel and a screw-down stainless steel case back are fitted. The watch is water-resistant to 300 meters.

The scratch-resistant sapphire crystal has several layers of anti-reflective coating on the underside. The stainless steel bracelet closes with a double safety folding clasp that has an integrated diving extension.

Model
L3.780.4.96.6
Collection
HydroConquest
Case
Stainless steel
Case size
39 mm wide, 12.20 mm thick
Case back
Screw-down stainless steel
Bezel
Unidirectional rotating
Dial
Sunray blue, with date display, applied Arabic numerals and indexes, silvered polished hands
Luminescence
Luminous hands and markers with Swiss Super-LumiNova
Crystal
Scratch-resistant sapphire, anti-reflective coating on the underside
Movement
Self-winding mechanical, L888
Frequency
25,200 vibrations per hour
Power reserve
Approximately 72 hours

Questions and answers

Is the 39 mm HydroConquest good for small wrists?
Yes. The 39 mm case and roughly 47 mm lug-to-lug fit wrists that the 41 mm version overwhelms. Try it on if you are between sizes.
How does it compare with the Tudor Black Bay 58?
Both are 39 mm steel divers with 300 m or more of water resistance. The Tudor has a more refined bracelet and clasp and stronger resale; the Longines has a silicon balance spring and a longer power reserve.
What movement does it use?
The Longines L888 automatic, a modified ETA base with a silicon balance spring and about 72 hours of power reserve.
Can I swim and dive with it?
Yes. It is rated to 300 m with a screw-down crown and case back, which covers swimming, snorkeling and recreational diving.
Does it have a date?
Yes, there is a date window at 3 o'clock.
What is in the box?
The watch on its steel bracelet, a Longines presentation box and warranty paperwork covering the five-year Longines warranty.
Where is the Longines HydroConquest 39mm Blue Dial Steel Men's Watch L37804966 cheapest?
At Time Machine Plus, for $2,000.00, as of our latest check.

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Water resistance
300 meters
Strap
Silver stainless steel, 19 mm wide, 8 inches long
Clasp
Double safety folding clasp with integrated diving extension
Warranty
5-year Longines warranty
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