Longines HYDROCONQUEST 43mm - L3.782.4.96.6

The Longines HYDROCONQUEST 43mm is an automatic watch, 43 mm across, with a sapphire crystal, water-resistant to 300 m. It was listed at €1,950 at Tempus at our check on 12 November 2026.

Where to buyChecked 12 November 2026

Tempus€1,950

See the offer at Tempus · €1,950

The button leads to today’s price. Affiliate link: the retailer pays us a commission, at no extra cost to you.

Who it suits

Anyone who swims, dives or wants a watch that never needs babying.

Strengths

Automatic movement · Sapphire crystal · Water-resistant to 300 m

Limits

43 mm diameter

Our view

A good choice at this price

Of 159 automatic watches within 20% of its price, none is better equipped (crystal, water resistance, titanium).

Depending on what you want

If your wrist is slim, the Auricoste La Royale measures only 37 mm, at €2,150.
If you want to spend less without losing anything on the spec sheet, the Hamilton Khaki Navy Scuba Auto GMT 43mm costs €1,445.
If you like the model but not this version, see the Longines HydroConquest 43mm Cadran Gris Soleillé, at €1,950.

Reading the spec sheet

What the spec sheet says

Automatic movement. It winds itself on the wrist, with no battery.
Sapphire crystal. The most scratch-resistant option.
Water-resistant to 300 m. Swimming and diving without a second thought.
Priced below the brand median. It costs 29% less than the median of the 383 automatic Longines watches in the catalogue (€2,750).

43 mm diameter. A large case, worth trying on first if your wrist is slim.

Analysis based on the retailer’s spec sheet, without handling the watch.

Brand: Longines
Case material: Stainless steel, ceramic bezel
Strap material: Steel
Diameter: 43.00 mm
Crystal: Scratch-resistant sapphire crystal, multi-layer anti-reflective coating
Movement: Automatic
Water resistance: 300 m (30 bar)
Dial colour: Sunray blue
Clasp: Double-safety folding clasp
Reference: L3.782.4.96.6