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The Longines HydroConquest diving watch features a black dial, gold bezel, black rubber strap, and white markers, shown at an angle against a white background.
Close-up of the back of the Longines HydroConquest, highlighting engraved branding, reference numbers, and its gold-colored crown and bezel.
Side view of the Longines HydroConquest, featuring a black textured band, silver case, gold crown, and gold ridged bezel with 30 visible—an elegant divers watch blending style and precision.
The Longines HydroConquest automatic wristwatch showcases a black dial, gold bezel and crown, black rubber strap, and a date display at 3 o’clock.
A close-up shows a Longines HydroConquest stainless steel clasp engraved with the brands logo, attached to a textured black strap.
Wearing a Longines HydroConquest watch with black strap and dial, paired with a beige sweater and black jacket.
A Longines HydroConquest watch featuring a black dial, gold accents, black bezel, date at 3 o’clock, and a black textured strap is displayed on a white background.
The Longines HydroConquest diving watch features a black dial, gold bezel, black rubber strap, and white markers, shown at an angle against a white background.
Close-up of the back of the Longines HydroConquest, highlighting engraved branding, reference numbers, and its gold-colored crown and bezel.
Side view of the Longines HydroConquest, featuring a black textured band, silver case, gold crown, and gold ridged bezel with 30 visible—an elegant divers watch blending style and precision.
The Longines HydroConquest automatic wristwatch showcases a black dial, gold bezel and crown, black rubber strap, and a date display at 3 o’clock.
A close-up shows a Longines HydroConquest stainless steel clasp engraved with the brands logo, attached to a textured black strap.
Wearing a Longines HydroConquest watch with black strap and dial, paired with a beige sweater and black jacket.
A Longines HydroConquest watch featuring a black dial, gold accents, black bezel, date at 3 o’clock, and a black textured strap is displayed on a white background.
The Longines HydroConquest diving watch features a black dial, gold bezel, black rubber strap, and white markers, shown at an angle against a white background.
Close-up of the back of the Longines HydroConquest, highlighting engraved branding, reference numbers, and its gold-colored crown and bezel.
Side view of the Longines HydroConquest, featuring a black textured band, silver case, gold crown, and gold ridged bezel with 30 visible—an elegant divers watch blending style and precision.
The Longines HydroConquest automatic wristwatch showcases a black dial, gold bezel and crown, black rubber strap, and a date display at 3 o’clock.
A close-up shows a Longines HydroConquest stainless steel clasp engraved with the brands logo, attached to a textured black strap.
Wearing a Longines HydroConquest watch with black strap and dial, paired with a beige sweater and black jacket.

Longines HydroConquest

L37813569 41 mm
View Specs
Regular price $2,150
Starting at /mo or 0% APR with Affirm .

This product is only available within the United States.

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Authorized Luxury Retailer
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Renowned for expertise in luxury watch retail, Watches of Switzerland embodies the highest standards of craftsmanship and service. With a history dating back to the 1700s, the company offers a curated selection of premier timepieces and commits to excellence in customer experience grounded in a legacy of trust and industry proficiency.

Authorized Luxury Retailer

Authorized Luxury Retailer

We are an authorized retailer for over 80 luxury watch brands.
Free Expedited Delivery
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Free Expedited Delivery on Orders $100 and Up (Estimated 1-3 Days)

Our secure shipping service operates Monday through Saturday, from 8:00 a.m. to 6:00 p.m. For security reasons, an adult signature is required for every delivery. Watches of Switzerland does not deliver to P.O. boxes or third-party forwarding services. For more information about delivery, click here. Tracking information will be made available upon shipping.

$15 Flat Fee on Orders Under $100 (Estimated 1 - 2 weeks)

Monday through Saturday, from 8:00 a.m. to 6:00 p.m. For more information about delivery, click here. Tracking information will be made available upon shipping.

If you have any questions or concerns regarding your order, please contact the Watches of Switzerland Client Services. 

Free Expedited Delivery

Free Expedited Delivery

We offer free, expedited delivery on all orders over $100.
Simple Easy Returns
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Our commitment to you does not end at delivery. We offer the following return services to make your experience as pleasant as possible.

10-Day Returns For Timepieces:

Timepieces purchased online can be returned or exchanged within 10 days from when they are shipped or collected.

30-Day Returns For All Other Purchases:

All other online purchases can be returned or exchanged within 30 days from when they are shipped or collected.

On presentation of the original receipt, your purchases may be returned or exchanged at any of our store locations. Alternatively, you may elect shipping to our facility with all the original paperwork. All refunds must be credited to the same tender used for the original purchase. To return the online purchases through secure shipping service, please contact our client service team who will provide you the shipping label.

All returns or exchanges must be in new, unworn condition, with no scratches or markings, not sized or adjusted and in their original packaging and with warranty cards / certificated and instruction booklets.

Simple Easy Returns

Simple Easy Returns

Purchase with confidence with our simple, free return policy.

Details

Developed for divers and water sport professionals Powered by the L888 calibre movement 41mm stainless steel case secured with a black, textured rubber strap Water resistant up to 30 bar (300 metres) 72 hours of power reserve DESIGNED FOR DIVERS Originally launched in 2007, the HydroConquest collection embodies Longines’ tradition of fusing elegance and performance. Part of the brand’s contemporary sport collection, this stylish chronograph presents the aesthetic features and functionality of a classic diving watch, reinforcing Longines’ reputation for creating timepieces for extreme sports. UNBEATABLE PERFORMANCE This 41mm timepiece pairs a stainless steel case, with a rotating, ceramic bezel and a black, textured rubber strap. Capable of reaching depths of 30 bar (300 metres), this exceptional watch is driven by the L888 calibre movement, with a 72-hour power reserve for uninterrupted performance. The sunray black dial features applied numerals and indexes, gilt hands, and a date display at 3 o’clock. Further reference to the brand’s diving heritage is offered by the double safety folding clasp and Super-LumiNova detailing for enhanced visibility.

General

Condition

New

Brand

Longines

Reference

L37813569

Product Code

17350917

Power Reserve

72 Hours Approx

Features

Deployment clasp
Automatic movement
Waterproof

Case

Case Size

41 mm

Case Depth

12 mm

Case Shape

Round

Case Material

Steel & PVD Yellow Gold

Bezel Material

Ceramic

Bezel Color

Black

Crystal

Sapphire

Dial

Dial Color

Black

Dial Texture

Sunbeam

Dial Markers

Dots and Arabic

Stone Set

No

Movement

Type

Auto

Bracelet

Type

Strap

Stone Set

No

Buckle

Deployment