Photo: Tempus Shop
Catalogue / Longines / ref. L3.769.4.56.6
Longines HydroConquest - L3.769.4.56.6
The Longines HydroConquest is a quartz watch, 42 mm across, with a sapphire crystal, water-resistant to 300 m. It was listed at €1,550 at Tempus at our check on 12 November 2026. Its price is in line with the 179 quartz Longines watches in the catalogue (median: €1,550).
Where to buyChecked 12 November 2026
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
Sapphire crystal · Water-resistant to 300 m
Limits
Quartz movement
Reading the spec sheet
What the spec sheet says
- Sapphire crystal. The most scratch-resistant option.
- Water-resistant to 300 m. Swimming and diving without a second thought.
- Quartz movement. At €1,550, other watches in the catalogue have an automatic movement.
Analysis based on the retailer’s spec sheet, without handling the watch.
- Brand
- Longines
- Gender
- Men
- Case material
- Steel
- Strap material
- Steel
- Diameter
- 42 mm
- Crystal
- Sapphire crystal
- Movement
- Quartz
- Water resistance
- 300 m (30 bar)
- Clasp
- Double-safety folding clasp
- Reference
- L3.769.4.56.6
Questions
The short answers
Is the Longines HydroConquest an automatic watch?
No. It runs on a quartz movement.
Can you swim with the Longines HydroConquest?
Yes. It is water-resistant to 300 m, which covers swimming and diving.
Does the crystal of the Longines HydroConquest scratch?
It has a sapphire crystal, the most scratch-resistant kind.
What size is the Longines HydroConquest?
Its case measures 42 mm in diameter.
How much does the Longines HydroConquest cost?
It was listed at €1,550 at Tempus at our check on 12 November 2026.
Where it ranks
This watch appears in
- Quartz watches with sapphire crystal, water-resistant to 100 m96 references
- Quartz watches with sapphire crystal under €2,000257 references
- Watches with sapphire crystal, water-resistant to 100 m, under €2,000365 references
- Quartz dive watches44 references
- Quartz watches, water-resistant to 100 m116 references
Official brand video
The collection on video
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