Longines Conquest L3.750.4.52.6
Ref. L3.750.4.52.6 · Black sandblasted dial · In production · Longines label: Unisex
- Case38 mm
- Thick9.2 mm
- Lug-to-lug46.8 mm
- Water res.100 m
- MovementQuartz
- CrystalSapphire
Longines Conquest L3.750.4.52.6 size, specs and price at a glance
The Longines Conquest L3.750.4.52.6 is 38 mm wide and 9.2 mm thick, with a lug-to-lug length of 46.8 mm. It takes 19 mm straps and ships on a bracelet. Inside is the L157.3 quartz calibre, water resistant to 100 m. US list price: $1,500 when we last checked longines.com (3 Nov 2026).
Strap shopping? See our Longines lug width chart.
Overview
The Longines L3.750.4.52.6 is a sports watch from the Conquest collection. It has a 38 mm stainless steel case, 9.2 mm thick, 46.8 mm from lug to lug. Longines lists the dial as black sandblasted. Inside is a quartz movement (calibre L157.3). You also get 100 m water resistance, a sapphire crystal and a bracelet.
Who it suits
- Wrists of roughly 15.8–17.0 cm (6.2–6.7 in), by our Watch Finder sizing guide
- Everyday wear including swimming
- Shirt cuffs and smarter dress codes
- Grab-and-go wear without winding or setting
Strengths
- Sapphire crystal resists scratches
- Slim at 9.2 mm
Written by Watch.co from the published specs below. These are not owner reviews.
Full specifications
Case
| Case diameter | 38 mm | longines.com · 3 Nov 2026 |
|---|---|---|
| Thickness | 9.2 mm | longines.com · 3 Nov 2026 |
| Lug-to-lug | 46.8 mm | longines.com · 3 Nov 2026 |
| Case material | Stainless steel | longines.com · 3 Nov 2026 |
| Crystal | Sapphire | longines.com · 3 Nov 2026 |
| Water resistance | 100 m | longines.com · 3 Nov 2026 |
| Weight | 116 g | longines.com · 3 Nov 2026 |
Dial
| Dial colour | Black sandblasted | longines.com · 3 Nov 2026 |
|---|---|---|
| Date | Date | longines.com · 3 Nov 2026 |
Movement
| Movement type | Quartz | longines.com · 3 Nov 2026 |
|---|---|---|
| Calibre | L157.3 | longines.com · 3 Nov 2026 |
Strap / Bracelet
| Bracelet / strap | Bracelet | longines.com · 3 Nov 2026 |
|---|---|---|
| Lug width | 19 mm | longines.com · 3 Nov 2026 |
Other
| US list price (MSRP) | $1,500 | longines.com · 3 Nov 2026 |
|---|---|---|
| Production status | In production | longines.com · 3 Nov 2026 |
| Style (our classification) | Sports | our classification |
Specs are summarised in our own words from the brand's product page. Each row links its source and the date we checked it. Fields we haven't verified are left out rather than guessed.
Variants with the same specs
Same case, movement and bracelet or strap; typically a different dial or finish.
More in Conquest
Similar alternatives
Picked with Watch Finder's style tags and sizing.
Questions about the Longines Conquest L3.750.4.52.6
How big is the Longines Conquest L3.750.4.52.6?
The case is 38 mm wide, 9.2 mm thick and 46.8 mm from lug to lug.
What movement does the Longines Conquest L3.750.4.52.6 use?
It uses the L157.3 calibre, a quartz movement.
Can I swim with the Longines Conquest L3.750.4.52.6?
Yes. It is rated to 100 m.
Does the Longines Conquest L3.750.4.52.6 have a date?
Yes, it shows the date.
How much is the Longines Conquest L3.750.4.52.6?
The US list price was $1,500 on longines.com when we checked on 3 Nov 2026. Prices change, so check before you buy.
Will the Longines Conquest L3.750.4.52.6 fit my wrist?
By our sizing guide it sits best on wrists of about 15.8–17.0 cm (6.2–6.7 in). Use the fit checker on this page to test your own wrist.
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