Longines

HydroConquest 39 Automatic Stainless Steel / Black / Bracelet

Ref. L3.780.4.56.6

$1,728

Average market price ·

Price Range

$750 – $2,122

Listings Analysed

26

Data last updated May 17, 2026 · Sources: Chrono24, eBay, WatchFinder & more

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Other Longines Watches

HydroConquest 41mm Black Ceramic Ref. L3.781.4.56.6 HydroConquest 41mm Blue Ceramic Ref. L3.781.4.96.6 HydroConquest 41mm Green Ceramic Ref. L3.781.4.06.6 HydroConquest 41mm Grey Ceramic Ref. L3.781.4.76.6 HydroConquest 41mm Black Aluminum Ref. L3.742.4.56.6 HydroConquest 41mm Blue Aluminum Ref. L3.742.4.96.6 HydroConquest 43mm Black Ceramic Ref. L3.782.4.56.6 HydroConquest 44mm Black Ceramic Ref. L3.841.4.56.6