Zoom Media Gallery
Longines Hydroconquest stainless steel GMT wristwatch featuring a black dial, date display, orange GMT hand, water resistance, and a rotating bezel, shown at an angle.
Close-up of a Longines Hydroconquest automatic watch featuring a black dial and bezel, orange GMT hand, date window, stainless steel case, and 300m water resistance.
Back view of the Longines Hydroconquest watch in stainless steel, featuring an engraved logo, a globe motif, and inscriptions indicating its water and magnetic resistance.
Close-up of the stainless steel case back on the Longines Hydroconquest watch, engraved with the brand logo, model name, and water resistance details.
Close-up of a Longines Hydroconquest stainless steel bracelet with deployment clasp, featuring an engraved logo and crafted for remarkable water resistance.
The Longines Hydroconquest features a silver metal watch bracelet with an open clasp and a discreetly engraved logo on the clasp.
The Longines Hydroconquest is a stainless steel wristwatch featuring a black dial, silver markers, date display, rotating bezel, metal link bracelet, and strong water resistance.
Longines Hydroconquest stainless steel GMT wristwatch featuring a black dial, date display, orange GMT hand, water resistance, and a rotating bezel, shown at an angle.
Close-up of a Longines Hydroconquest automatic watch featuring a black dial and bezel, orange GMT hand, date window, stainless steel case, and 300m water resistance.
Back view of the Longines Hydroconquest watch in stainless steel, featuring an engraved logo, a globe motif, and inscriptions indicating its water and magnetic resistance.
Close-up of the stainless steel case back on the Longines Hydroconquest watch, engraved with the brand logo, model name, and water resistance details.
Close-up of a Longines Hydroconquest stainless steel bracelet with deployment clasp, featuring an engraved logo and crafted for remarkable water resistance.
The Longines Hydroconquest features a silver metal watch bracelet with an open clasp and a discreetly engraved logo on the clasp.
The Longines Hydroconquest is a stainless steel wristwatch featuring a black dial, silver markers, date display, rotating bezel, metal link bracelet, and strong water resistance.
Longines Hydroconquest stainless steel GMT wristwatch featuring a black dial, date display, orange GMT hand, water resistance, and a rotating bezel, shown at an angle.
Close-up of a Longines Hydroconquest automatic watch featuring a black dial and bezel, orange GMT hand, date window, stainless steel case, and 300m water resistance.
Back view of the Longines Hydroconquest watch in stainless steel, featuring an engraved logo, a globe motif, and inscriptions indicating its water and magnetic resistance.
Close-up of the stainless steel case back on the Longines Hydroconquest watch, engraved with the brand logo, model name, and water resistance details.
Close-up of a Longines Hydroconquest stainless steel bracelet with deployment clasp, featuring an engraved logo and crafted for remarkable water resistance.
The Longines Hydroconquest features a silver metal watch bracelet with an open clasp and a discreetly engraved logo on the clasp.

Longines Hydroconquest

L38904566 43 mm
View Specs
Regular price $3,100
Starting at /mo or 0% APR with Affirm .
Authorized Luxury Retailer
Rolex green flag outside the Watches of Switzerland store with cream columns and large windows.

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
Cartier watch box close up

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
customer service woman helping customer

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

Hydroconquest GMT now comes with 43 mm-diameter black dial, with the exclusive Longines GMT calibre L844.5. It boasts extreme precision and a power reserve of up to 72 hours. A black sunray dial, unidirectional rotating bezel in black ceramic, water resistance to 30 bar (300 metres) and screw-in crown and screw-down case back are the signature features of this watch inspired by the world of water sports. The model comes with a stainless steel bracelet.

General

Condition

New

Brand

Longines

Reference

L38904566

Product Code

17351418

Power Reserve

72 Hours Approx

Features

Deployment clasp
Automatic movement
Waterproof

Case

Case Size

43 mm

Case Shape

Round

Case Material

Steel

Bezel Material

Ceramic

Bezel Color

Black

Crystal

Sapphire

Dial

Dial Color

Black

Dial Texture

Plain

Dial Markers

Baton

Stone Set

No

Movement

Type

Auto

Bracelet

Type

Bracelet

Stone Set

No

Buckle

Deployment