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Home/Browse/Longines/HYDROCONQUEST
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Longines HYDROCONQUEST
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Longines · HydroConquest

Longines HYDROCONQUEST

Ref. L3.788.4.06.6 · Diver

$2,200Sold out

21 matched eBay listings

Case

Diameter
42mm
Thickness
11.7mm
Lug-to-lug
51.2mm
Lug width
21mm
Material
Stainless Steel
Water resistance
300m

Crystal & dial

Dial colour
Green
Texture
Lacquered polished

Movement

Caliber
Longines L888
Type
Automatic
Beat rate
25,200 vph
Power reserve
72h
Jewels
21

HydroConquest collection · 15 watches

HydroConquest
HydroConquest42mm
HYDROCONQUEST
HYDROCONQUEST39mm
HYDROCONQUEST
HYDROCONQUEST43mm
HYDROCONQUEST 2026 COMMONWEALTH GAMES
HYDROCONQUEST 2026 COMMONWEALTH GAMES39mm
HydroConquest 41mm
HydroConquest 41mm41mm
HydroConquest 41mm
HydroConquest 41mm41mm
HydroConquest 41mm
HydroConquest 41mm41mm
HydroConquest 41mm PVD
HydroConquest 41mm PVD41mm
HydroConquest 43mm
HydroConquest 43mm43mm
HydroConquest 43mm
HydroConquest 43mm43mm
HydroConquest 44mm
HydroConquest 44mm44mm
HYDROCONQUEST EXCLUSIVE EDITION
HYDROCONQUEST EXCLUSIVE EDITION39mm
2 more in this collection
HYDROCONQUEST MESHHydroConquest PVD
Size
Alternatives

01The market

Market prices.

Retail$2,200

The forum market

See what sellers are asking.

Active listings12Across watch forums
Closed · 30d4Asking-price history

Browse forum listings and their asking prices. Market+ adds medians with their sample sizes and the weekly trend.

Retail stock & market context

Longines on the secondhand market

+8.5%

2026 so far · +3.2% to +16.0% · 44 matched watches

In line with the index

Divers as a group: +6.5% · 303 matched watches

Year-by-year readings →

02The connection engine

More like this.

Longines HYDROCONQUEST

Longines

HYDROCONQUEST

43mm · Automatic$2,000

Certina DS Action Diver 43mm Powermatic 80

Certina

DS Action Diver 43mm Powermatic 80

43mm · Automatic$1,045

Bremont Supermarine 300M

Bremont

Supermarine 300M

40mm · Automatic$3,550

S.U.F Helsinki Vetehinen

S.U.F Helsinki

Vetehinen

42mm · Automatic$4,391

Seagull Ocean Series Pro 300m Waterproof Diving Watch 41mm

Seagull

Ocean Series Pro 300m Waterproof Diving Watch 41mm

41mm · Automatic$499

Audaz ADZ-3050

Audaz

ADZ-3050

42mm · Automatic$550

View all alternatives

03The community take

Owners talk.

“
In a nutshell

The Longines HYDROCONQUEST (ref. L3.788.4.06.6) is an automatic diver watch, with a 42mm stainless steel case, 11.7mm thick, powered by the Longines L888 movement and a 72-hour power reserve. Water resistance is rated to 300m. Manufacturer MSRP is $2,200. The dial color is green.

Open the discussion

On real wrists · 1

04The paper trail

Ask the communityStart a discussion about the HYDROCONQUEST: get takes from other collectors.Ask →

05The discussion

Talk about the Longines HYDROCONQUEST.