Longines Hydroconquest Automatic 39 Stainless Steel / Black / Mesh L3.779.4.90.6
The Longines HydroConquest L3.779.4.90.6 debuted in 2026 as part of the HydroConquest collection, Longines’ line of contemporary dive watches designed for professional water resistance and everyday durability. The model follows the design direction introduced with the HydroConquest GMT in 2024, which revised the…
| Reference | L3.779.4.90.6 |
|---|---|
| Collection | HydroConquest |
| Case diameter | 39 mm |
| Case material | Ceramic, Stainless Steel |
| Bezel | Rotating, 0-60 (Dive) |
| Case shape | Round |
| Case back | Closed |
| Lug width | 20.00 mm mm |
| Movement | Longines caliber L888 |
| Water resistance | 300 m |
| Dial colour | Black |
| Dial finish | Gloss |
| Indexes | Stick / Dot |
| Hands | Proprietary |
| Crystal | Sapphire |
| Year introduced | 2026 |
| Limited edition | Yes |
This is a reference-catalog entry for the Longines Hydroconquest Automatic 39 Stainless Steel / Black / Mesh L3.779.4.90.6. WatchFlow's Watch Library lets a dealer attach a reference like this to a piece of stock in one click, so the brand, reference and specs are filled in automatically instead of retyped — then that record drives listings, invoices and reports. See how it fits the wider watch inventory management workflow.
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