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Longines Conquest 41mm Mens Watch Green
Ref. L38304029
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Stepping up in the same colour and case shape
The Conquest has always sat at the active end of Longines' range, and this generation makes that positioning explicit. The L888 calibre inside is Longines' own high-specification movement, notable for its monocrystalline silicon balance-spring — a component that resists both magnetism and temperature shifts in ways a conventional hairspring cannot — and it carries a 72-hour reserve, so a watch left on the nightstand Friday evening is still running Monday morning. At 10.9mm thick and 41mm across, the proportions are honest for a sports watch: present on the wrist without being assertive, and the screw-in crown and 100m rating make it genuinely water-capable rather than merely splash-resistant. The sunray green dial shifts between deep forest and something closer to olive depending on what the light is doing, and the date sits at six o'clock rather than the usual three, which keeps the dial geometry symmetrical. The matching rubber strap continues the colour through to the wrist, and the micro-adjustable folding clasp means a precise fit without tools — useful on a watch this likely to be worn in and around water.
- Reference
- L38304029
- Brand
- Longines
- Collection
- Conquest
- Case size
- 41mm
- Case thickness
- 10.9mm
- Lug width
- 21mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Green
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- L888
- Functions
- Date
- Water resistance
- 100m
- Bracelet / strap
- Rubber strap
- Strap colour
- Green
- Clasp
- Folding clasp
- Lume
- Super-LumiNova
- Retailer
- Mappin & Webb
Additional specifications
- Power reserve
- 72 hours
Learn more about Longines
Auguste Agassiz began trading watches in Saint-Imier in 1832, but the modern company dates from 1860, when his nephew Ernest Francillon built a factory in the meadows beside the Suze — the longines of the local dialect — and consolidated the scattered outworkers of the region under one roof.
Longines registered its winged hourglass in 1889. It is the oldest watch trademark still in continuous use.
The company's identity was built on precision and on timing things in public. It supplied chronographs for the first modern Olympic events it timed in 1896, timed the 1912 Federal Gymnastics Festival with a broken-wire mechanism accurate to a hundredth of a second, and developed the photo-finish camera and the quartz timing devices used across twentieth-century athletics.
Its aviation associations are equally deep. Longines instruments were carried by Charles Lindbergh across the Atlantic in 1927, and the Hour Angle watch, designed to Lindbergh's own specification to simplify longitude calculation, remains in the catalogue. Amelia Earhart and Howard Hughes both navigated by Longines.
The house was among the most decorated at nineteenth-century observatory trials, holding numerous precision records. Since joining the Swatch Group in 1983 it has occupied the accessible-heritage position: exclusive ETA-based movements, archive-driven designs through the Heritage line, and volume that makes it one of the group's most important brands.
- 1860
- Ernest Francillon builds the factory at Les Longines.
- 1889
- The winged hourglass is registered — the oldest watch trademark in use.
- 1912
- Broken-wire timing achieves hundredth-second accuracy.
- 1927
- Lindbergh crosses the Atlantic with Longines instruments.
- 1983
- Becomes part of the Swatch Group.
Also in 5 collections
This watch appears in the Longines Conquest range (60), Back in Stock (4,908), Stainless Steel Watches (3,241), Automatic Watches (1,645) and Green Dial Watches (447).
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What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 100m water resistance covers swimming and watersports
- Sapphire crystal, which resists scratching
- 72-hour reserve survives a weekend off the wrist
- Luminous hands and markers for low light
- Sits in the lower half of Longines's range as we list it
Longines Conquest alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | L38304029 | T1494592105100 | 01 733 7805 4163-07 8 |
|---|---|---|---|
| Price | £1,800 | £1,720 | £1,950 |
| Case size | 41mm | 41mm | 41mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Rubber strap | Stainless steel bracelet | Stainless steel bracelet |
| Power reserve | 72 hours | 60 hours | 41 hours |
| This watch | Closely matched | Closely matched |
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 100m it is rated for swimming and snorkelling, though not for diving.
Water resistance explainedWill the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Sapphire, mineral and acrylic comparedDoes it need a battery?
No. It is automatic — the motion of your wrist winds it, and there is no cell to replace.
Quartz, automatic and solar comparedHow long does it run for when it's not worn?
About 72 hours fully wound — enough to sit off the wrist over a weekend and still be running.
What size strap does it take?
21mm. Any strap of that width will fit, and on most modern watches quick-release bars make the swap a two-minute job with no tools.
Is it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Both Mappin & Webb and Goldsmiths list it at £1,800, so choose on delivery and warranty rather than price.
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