About This Watch
The Longines HydroConquest GMT merges the proven dive watch platform with a genuine GMT complication, creating one of the most capable and affordable travel dive watches on the market. The independently adjustable GMT hand — operated via the crown — allows tracking of a second time zone without disturbing the main time display, a feature that until recently required spending well north of $3,000 from competitors like Tudor and Omega. The 24-hour ceramic bezel insert provides quick reference for the second time zone and can also serve as a rudimentary third-zone indicator. The blue sunburst dial features the additional red-tipped GMT hand that sweeps once around the dial every 24 hours, adding a pop of color and a layer of functionality. The L844.4 caliber, based on the ETA A31.L21, integrates the GMT module seamlessly while maintaining the 72-hour power reserve and silicon hairspring found throughout the updated HydroConquest range. The 300-meter water resistance is maintained despite the additional crown position required for the GMT function, demonstrating Longines' engineering competence. At approximately $1,825, this watch undercuts the Tudor Black Bay GMT by more than a thousand dollars while offering a ceramic bezel and comparable movement specifications. For the frequent traveler who also values aquatic capability, the HydroConquest GMT is a compelling proposition that makes genuine Swiss GMT complications accessible to a broader audience than ever before.
Specifications
Movement
| Movement Type | Automatic |
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| Caliber | L844.4 |
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| Power Reserve | 72 hours |
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| Frequency | 25,200 vph |
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| Jewels | 25 |
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Case
| Case Diameter | 41.0mm |
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| Case Thickness | 13.0mm |
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| Case Material | Stainless Steel |
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| Crystal | Sapphire |
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| Bezel | Bidirectional rotating, 24-hour ceramic insert |
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| Dial Color | Blue |
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| Lug Width | 21mm |
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| Lug-to-Lug | 48.0mm |
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Features
| Water Resistance | 300m / 984ft |
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| Bracelet/Strap | Stainless steel bracelet |
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| Clasp | Folding clasp with safety push-buttons |
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| Weight | 160g |
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| Complications | DateGMT |
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