Longines HydroConquest Automatic Grey Dial Rubber Strap Men's Watch L3.780.3.78.9

Longines HydroConquest Automatic Grey Dial Rubber Strap Men's L3.780.3.78.9

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Product Details

Case
Case Material
Ceramic & Stainless Steel
Case Description
Brushed Stainless Steel
Case Finish
Brushed
Case Shape
Round
Case Diameter
39.00mm
Case Thickness
12.20mm
Case Back
Solid - Engraved Case Back
Bezel
Uni-directional Rotating. Minute Scale
Crystal
Scratch Resistant Sapphire
Crown
Push-Pull
Dial
Dial Color
Grey
Dial Description
Luminous Rose Gold Tone Hands with Arabic Numeral & Stick Hour Markers with Minute Markers Around the Outer Rim and the Date at 3 o'clock on a Grey Dial
Dial Markers
Arabic & Stick
Hand Color
Rose Gold
Calendar
Date at 3 o'clock
Functions
Date, Power Reserve and Hour, Minute, Second
Movement
Movement Type
Automatic Self Winding
Engine
Longines Caliber L888
Power Reserve
Approx. 72 Hours
Movement Description
Swiss Automatic
Additional Information
Water Resistant
300 Meters - 990 Feet
Style
Sports
Warranty
5 Year WatchMaxx Warranty
Band
Band Material
Rubber
Band Color
Grey
Band Description
Grey Rubber
Band Type
Strap
Clasp Type
Deployment with Push Button and Foldover
Additional Info
Also known as
L37803789

The HydroConquest in grey and rose gold holds a quiet kind of power. It moves like a tool built for pressure, but it looks like something meant for conversation. This piece doesn’t lean into one identity. It balances between sport and polish, utility and presence, with every detail working toward that middle ground.

The case measures 39mm across. That size lands in a sweet spot. Large enough to catch the eye. Compact enough to wear without drawing attention to itself. Stainless steel and ceramic build the structure. The materials alternate in tone and texture. The steel brings weight. The ceramic adds resistance. Both carry the same muted grey finish, smoothed and brushed to a semi-matte sheen. The bezel rotates with a quiet click. It locks with precision. Each grip on the edge feels like it was cut by a toolmaker. It serves a purpose, but carries a bit of style in the way it holds light.

The dial is a shade of grey that changes with each glance. At first it reads flat, almost industrial. Then it picks up the warmth from the rose gold hands and markers. Suddenly it feels deeper. The contrast brings a quiet glow across the face. The markers mix Arabic numerals at the cardinal points with simple dots and lines elsewhere. They’re crisp, filled with lume, and easy to read without checking twice. The rose gold hands follow the same rule. Broad. Clean. Luminous. A small date window sits at 3 o’clock. The background matches the dial. The numerals are sharp. Nothing draws extra attention, but nothing gets lost.

Inside the case, the Longines Caliber L888 movement handles the time. It’s automatic and self-winding. It runs with a 72-hour power reserve. That’s three days of reliability. No winding. No adjustment. Once it’s set, it stays on beat.

The crystal covering the dial is sapphire. It resists scratches and stays clear. The surface is flat, so there’s no distortion. The edge rises just slightly above the bezel, giving the face a framed look without interrupting the profile.

The strap is grey rubber. It’s soft, but firm. There’s texture in the design, a fine pattern that keeps it from feeling slick. The rubber hugs the wrist, and the deployant clasp locks it into place with a secure click. There’s no overhang. No slip. The connection feels sealed.

This HydroConquest doesn’t overperform. It stays composed. Built for water, designed for daily wear, and dressed just enough to walk into any setting without feeling out of place. The grey tones bring calm. The rose gold brings heat. Together they give this watch a subtle tension. A contrast that plays out across the dial every time you catch the light. It doesn’t compete and instead sits apart. Confident in what it offers. Precise in how the Longines HydroConquest keeps time. Made for someone who prefers depth over volume.

Warranty

The length of the warranty period for all items are specified in the item details, and are guaranteed from the date of purchase. Warranty covers only defects in manufacturing or materials, movement, and battery replacement. Warranty excludes scratches or changes to the finish, damage to the glass, crystal, crown, stem, case, strap, or bracelet. Damage caused by excessive wear-and-tear and/or physical abuse, or resulting from wear under conditions exceeding the manufacturer's water resistance limitations is excluded from the warranty.

WatchMaxx will repair the product, including the cost of all parts and labor during the warranty period. WatchMaxx will return the repaired or replacement item at no charge to the customer.

Warranty return parcels must be clearly labeled with a return authorization number obtained by contacting WatchMaxx customer service. Parcels without a clearly visible valid return authorization number will be refused.

Goods must be returned via a traceable carrier, such as FedEx, United Parcel Service (UPS) or the United States Postal Service (USPS), with insurance and delivery prepaid by the purchaser. Parcels shipped collect will be refused. The customer is liable for loss or damage in transit.

WatchMaxx disclaims any liability for consequential or incidental damages for breach of written or implied warranty of this item, including merchantability or fitness for a particular purpose. This warranty gives you specific legal rights and you may have other rights that vary from state to state. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation may not apply to you.

Return Policy

After receiving the item, contact seller within: 30 days.

Refund will be given as: Money back.

Return shipping: Seller pays return shipping.

All items purchased from WatchMaxx may be returned with the following conditions, except those marked as "Final Sale":

  1. Merchandise must be returned within 30 days of receipt, in original, unused condition with all original tape, plastic protectors, and stickers intact and having never been removed.
  2. All returned items, whether for refund, repair or exchange, must be clearly labeled with a return authorization number obtained by contacting WatchMaxx customer service via email to WatchMaxx. Parcels without a clearly visible valid return authorization number will be refused.
  3. Goods must be returned via a traceable carrier, such as FedEx, United Parcel Service (UPS) or the United States Postal Service (USPS), with insurance and delivery to WatchMaxx prepaid by the purchaser. Parcels shipped collect will be refused. The customer is liable for loss or damage in transit.
  4. Refund of the purchase price will be issued in the same form as payment received.
  5. WatchMaxx policy is to attempt to contact the purchaser for 3 business days to resolve delivery problems or if delivery was refused. After 3 business days, such items will be regarded as returned and eligible for refund subject to the conditions above.

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International Shipping

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  • We ship via expedited shipping that usually arrives within 2-4 days.
  • For shipping to Russia, allow up to two weeks for delivery (USPS does not guarantee delivery times).

WatchMaxx charges only for the product and shipping to international delivery destinations. The shipping documents and invoice will show the actual purchase price according to local and international law. Any duties or taxes, including GST or VAT taxes, are the sole responsibility of the purchaser. These charges, if any, are usually collected by either the carrier or local customs authority when the order reaches the destination country, prior to delivery of the order. Please contact your local customs authority for details before placing your order.

About Us

We are a family owned business with over 20 years of experience selling fine watches, and have been selling investment-quality timepieces online since 2004. Today, WatchMaxx is among the leading online retailers of luxury watches. We are proud of our reputation, and enjoy high ratings by independent sources and customers. Everything we sell is 100% genuine, with no fakes, copies, replicas or any other deception. Every item ships in the original manufacturer's packaging. All items are brand new (unless stated otherwise) and engraved with the original manufacturer serial numbers. We deliver the brand-name watches people love, for discount prices significantly below suggested retail.

Frequently Asked Questions

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Every item we sell is guaranteed to be 100% authentic and brand new.

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WatchMaxx is exactly the kind of source you can trust, because you can check our reputation before you buy, return the product if you are not satisfied, and enjoy your purchase knowing that it is guaranteed.
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Can I return it?

Yes. You can return regular purchases for up to 30 days after delivery. Some items are marked “final sale” and cannot be returned, but we always confirm any exceptions to the return policy before shipping.

Is it Guaranteed?

We guarantee every watch we sell for at least 2 years, longer if the manufacturer's guarantee exceeds 2 years. You can see our guarantee policy details by clicking the "Warranty" tab.

What are your hours of operation?

Monday-Thursday 10:00 AM - 6:00 AM (EST); Friday 9:30 AM - 1:00 PM (EST); Closed Saturday, Sunday and holidays.

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