Longines - Hydroconquest - L3.651.4 - Men - 2000

04
days
06
hours
00
minutes
33
seconds
Current bid
€ 490
Reserve price not met
Pasquale Picca
Expert
Selected by Pasquale Picca

Expert and certified watch technician with over 15 years of experience, author and founder of CHLB

Estimate  € 1,200 - € 1,400
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Longines HydroConquest Chronograph, reference L3.651.4, 41 mm stainless steel case with blue dial, automatic calibre L667, 300 m water resistance with a unidirectional steel bezel, three‑counter chronograph and date at 3, sapphire anti‑reflective crystal, screw‑down crown and case back, in very good condition with minor wear, full set including original box, papers and warranty.

AI-assisted summary

Description from the seller

Longines HydroConquest Chronograph, reference L3.651.4, "diver" professional 300m.

The watch houses the reliable automatic caliber L667, known for its precision and ease of maintenance.

Main features:

• Case: 41mm stainless steel (excluding crown)

• Crystal: anti-scratch sapphire with anti-reflective coating.

• Water Resistance: 300 meters (30 ATM) with crown and case back screwed down

• Functions: chronograph with three sub-dials and date at 3 o'clock.

• Bezel: Unidirectional rotating steel,

The watch is in condition nearly new.
And full set.
It was a gift at the start of January 2026 for the holidays and was purchased from a second-hand watch dealer.
Perfect in every way.

Longines HydroConquest Chronograph, reference L3.651.4, "diver" professional 300m.

The watch houses the reliable automatic caliber L667, known for its precision and ease of maintenance.

Main features:

• Case: 41mm stainless steel (excluding crown)

• Crystal: anti-scratch sapphire with anti-reflective coating.

• Water Resistance: 300 meters (30 ATM) with crown and case back screwed down

• Functions: chronograph with three sub-dials and date at 3 o'clock.

• Bezel: Unidirectional rotating steel,

The watch is in condition nearly new.
And full set.
It was a gift at the start of January 2026 for the holidays and was purchased from a second-hand watch dealer.
Perfect in every way.

Details

Brand
Longines
Gender
Men
Model
Hydroconquest
Reference number
L3.651.4
Band material
Steel
Shipped insured
Yes
Band length
Regular (180–200 mm)
Period
2000-2010
Repainted dial
No
Movement
Automatic
Dial colour
Blue
Case material
Stainless steel
Original box included
Yes
Original papers included
Yes
Original warranty included
Yes
Case diameter
41 mm
Condition
Very good - minor signs of wear
Year
2000
ItalyVerified
58
Objects sold
Private

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