Longines - Hydro Conquest Automatic - L3.781.4 - Men - 2025
05
days
08
hours
12
minutes
34
seconds
Current bid
€ 699
Reserve price met
Expert
Selected by Juan Carlos Borrella Martin
Over 25 years’ experience specialising in premium and modern watches internationally.
Estimate € 1,800 - € 2,000
29 other people are watching this object
 Bidder 1298 | €699 | |
|---|---|---|
 Bidder 6404 | €649 | |
| Bidder 1298 | €599 | |
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Longines HydroConquest Automatic, reference L3.781.4, 41 mm stainless steel professional diver’s watch with automatic movement, unworn and supplied with original box, papers and warranty, long steel bracelet, 300 m water resistance.
AI-assisted summary
Description from the seller
Longines HydroConquest Automatic 41 mm – Professional Diver’s Watch
Offered for auction is this Longines HydroConquest men’s wristwatch, reference L3.740.4.56.6 / L37404566, a robust Swiss sports watch designed for both professional performance and everyday elegance.
The HydroConquest collection represents Longines’ commitment to precision, durability and classic design, making it one of the brand’s most respected diving watch lines.
Condition:
Very well preserved
Fully functional
Accurate timekeeping
Carefully maintained
Key features:
Swiss automatic movement
Professional 300 m water resistance
Strong, sporty design with excellent legibility
Suitable for daily wear as well as diving activities
All accessories shown in the photographs are included in the lot.
The stainless steel bracelet is full length, with all original links present.
Technical specifications:
Brand: Longines
Collection: HydroConquest
Reference number: L3.740.4.56.6 / L37404566
Gender: men’s
Case material: stainless steel
Case shape: round
Case diameter: 41 mm
Case back: solid
Crystal: sapphire
Dial color: black
Dial finish: luminescent
Indexes: dot indexes
Hands: luminous silver-tone
Bezel: unidirectional diving bezel
Bracelet material: stainless steel
Bracelet color: silver-tone
Lug width: 21 mm
Movement
Movement type: automatic
Caliber: Longines Calibre 619 / 888
Jewels: 21
Power reserve: approx. 42 hours
Frequency: 25,200 vibrations per hour
Functions
Hours, minutes, seconds
Date display
Luminous hands and indexes
Water resistance
300 meters / 30 ATM, suitable for swimming, snorkeling and diving
Shipping and packaging:
The Longines HydroConquest Automatic 41 mm is a true Swiss diver’s watch, combining sporty strength, mechanical reliability and timeless design. With its automatic movement, high water resistance and iconic Longines quality, this timepiece is an excellent choice for both collectors and everyday use.
The watch will be professionally and securely packaged, using protective materials to ensure safe transport. Shipment will be carried out via a reliable, fully trackable courier service to the auction winner.
Seller's Story
Translated by Google TranslateLongines HydroConquest Automatic 41 mm – Professional Diver’s Watch
Offered for auction is this Longines HydroConquest men’s wristwatch, reference L3.740.4.56.6 / L37404566, a robust Swiss sports watch designed for both professional performance and everyday elegance.
The HydroConquest collection represents Longines’ commitment to precision, durability and classic design, making it one of the brand’s most respected diving watch lines.
Condition:
Very well preserved
Fully functional
Accurate timekeeping
Carefully maintained
Key features:
Swiss automatic movement
Professional 300 m water resistance
Strong, sporty design with excellent legibility
Suitable for daily wear as well as diving activities
All accessories shown in the photographs are included in the lot.
The stainless steel bracelet is full length, with all original links present.
Technical specifications:
Brand: Longines
Collection: HydroConquest
Reference number: L3.740.4.56.6 / L37404566
Gender: men’s
Case material: stainless steel
Case shape: round
Case diameter: 41 mm
Case back: solid
Crystal: sapphire
Dial color: black
Dial finish: luminescent
Indexes: dot indexes
Hands: luminous silver-tone
Bezel: unidirectional diving bezel
Bracelet material: stainless steel
Bracelet color: silver-tone
Lug width: 21 mm
Movement
Movement type: automatic
Caliber: Longines Calibre 619 / 888
Jewels: 21
Power reserve: approx. 42 hours
Frequency: 25,200 vibrations per hour
Functions
Hours, minutes, seconds
Date display
Luminous hands and indexes
Water resistance
300 meters / 30 ATM, suitable for swimming, snorkeling and diving
Shipping and packaging:
The Longines HydroConquest Automatic 41 mm is a true Swiss diver’s watch, combining sporty strength, mechanical reliability and timeless design. With its automatic movement, high water resistance and iconic Longines quality, this timepiece is an excellent choice for both collectors and everyday use.
The watch will be professionally and securely packaged, using protective materials to ensure safe transport. Shipment will be carried out via a reliable, fully trackable courier service to the auction winner.
Seller's Story
Translated by Google TranslateDetails
Brand
Longines
Gender
Men
Model
Hydro Conquest Automatic
Band material
Steel
Reference Number
L3.781.4
Band length
Long (over 200 mm)
Shipped Insured
Yes
Repainted dial
No
Period
2020+
Movement
Automatic
Case material
Stainless steel
Original box included
Yes
Original papers included
Yes
Case diameter
41 mm
Original warranty included
Yes
Condition
Unworn - no signs of wear
Year
2025
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