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Round 41 mm stainless steel dive watch, black ceramic bezel, black sunray dial, silver hands, steel bracelet

Longines

Longines HydroConquest L3.740.4.56.6 41 mm Black Dial Quartz Watch

SKU CH-WDH9-WT71Z MPN L3.740.4.56.6

A 41 mm stainless steel dive watch with a black dial, Swiss quartz movement, sapphire crystal and 300 m water resistance

  • StyleLuxury
  • Series NameHydroConquest
  • MaterialStainless Steel
  • MovementSwiss Quartz
  • ColorBlack/Silver
  • DesignLuxury
  • Swiss quartz movement delivers precise timekeeping
  • 300 m water resistance suits serious diving
  • Scratch-resistant sapphire crystal protects the black dial
  • Uni-directional ceramic bezel tracks elapsed time safely
  • Double safety folding clasp secures the bracelet

HydroConquest 41 mm dive watch

The Longines HydroConquest L3.740.4.56.6 is a 41 mm stainless steel quartz watch built for water sports and daily wear. Its Swiss quartz movement powers analog hands and a date window at three o'clock. The watch is water-resistant to 300 metres or 1000 feet, making it suitable for serious diving. It is designed for adult men who want a luxury sports timepiece.

Sapphire crystal and ceramic bezel

A scratch-resistant sapphire crystal protects the sunray black dial with luminescent snowflake hands and applied indices. The uni-directional rotating bezel carries a black ceramic top ring for dive timing. A screw-down crown guards the movement, while the solid caseback bears the Longines winged hourglass logo. The 21 mm stainless steel bracelet fastens with a double safety folding clasp and push-piece mechanism.

Check strap fit and clasp operation

Verify that a 21 mm lug width matches any alternative strap you may wish to use. Ensure the double safety folding clasp operates smoothly on your wrist size. Confirm the 11.90 mm case thickness sits comfortably under shirt cuffs. The screw-down crown must be fully tightened before any water exposure to maintain the rated resistance.

Highlights

  • Swiss quartz movement delivers precise timekeeping
  • 300 m water resistance suits serious diving
  • Scratch-resistant sapphire crystal protects the black dial
  • Uni-directional ceramic bezel tracks elapsed time safely
  • Double safety folding clasp secures the bracelet

Specifications

BrandLongines
ModelL37404566
Part NumberL37404566
StyleLuxury
Series NameHydroConquest
MaterialStainless Steel
MovementSwiss Quartz
ColorBlack/Silver
DesignLuxury
ShapeRound
Dial ColorBlack
Dial MarkersArabic
DisplayAnalog
DateDate
Band MaterialStainless Steel
Band Width21 mm
FastenerDouble safety folding clasp and push-piece opening mechanism
GenderMale
AgeAdult
ConditionNew
BezelUni-directional Rotating
Case BackSolid
Case Diameter41 mm
Case MaterialStainless Steel
Case Thickness11.90 mm
CrownScrew-Down Crown
CrystalSapphire Crystal
Water-Resistant300 m
Special FeaturesScratch-resistant

Questions about this item

How deep can the 300 m water resistance actually take this watch?

The 300 m rating suits recreational diving and water sports; the screw-down crown and uni-directional bezel keep the seal intact at those depths.

Will the 41 mm case and 21 mm lug width fit a 7-inch wrist without overhang?

At 41 mm wide and 11.90 mm thick, the stainless steel case sits flush on most average wrists; the 21 mm bracelet tapers to the double safety folding clasp for a secure fit.

What is the correct way to set the date on this Swiss quartz movement?

Pull the screw-down crown to the first position after unscrewing it; turn clockwise to advance the date window at 3 o'clock, then push and screw the crown back down to restore water resistance.

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