Longines HYDROCONQUEST
Ref. L3.780.3.78.6 · Diver
$2,350In stock
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Case
- Diameter
- 39mm
- Thickness
- 12.2mm
- Lug-to-lug
- 48.1mm
- Lug width
- 19mm
- Material
- Stainless Steel
- Water resistance
- 300m
Crystal & dial
- Crystal
- Sapphire
- Dial color
- Grey
Movement
- Caliber
- Longines L888
- Type
- Automatic
Design language
- Case shape
- round
- Dial style
- matte
- Bezel
- rotating
- Bracelet
- lug-attached
- Hands
- baton
AI-detected from the product image
HydroConquest collection · 15 watches
2 more in this collection
Market
Retail$2,350
The forum market
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Closed · 90d0Asking-price history
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Retail stock & market context
Longines on the secondhand market
+8.4%
2026 so far · +4.2% to +15.7% · 45 matched watches
In line with the index
Divers as a group: +6.8% · 343 matched watches
Year-by-year readings →Similar watches
Community
Owners widely praise the Longines HYDROCONQUEST's dial and finishing, with one owner finding it superior to a Rolex Submariner, and value for money. The movement is well-regulated, losing approximately 2 seconds per day. Some owners criticize the bracelet for lacking tool-less micro-adjustment and describe winding the crown as a nuisance. The Longines HYDROCONQUEST GMT variant has tiny GMT markers that are difficult to read and lacks a quick date adjust feature. On balance, owners rate the Longines HYDROCONQUEST highly for its finishing and value.
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