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Longines Spirit 40mm Mens Watch Sunray Blue
Ref. L38104936
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Stepping up in the same colour and case shape
The Spirit collection draws on Longines' long association with aviation and exploration — the brand supplied instruments to record-breaking pilots throughout the early twentieth century, and the collection is built around that reference point. This particular piece carries the L888.4, a movement that earns its position: built on a modified ETA base with a silicon balance-spring, it holds COSC chronometer certification and a 72-hour power reserve, which together represent a meaningful specification at this tier of watchmaking. At 40mm the case reads proportionally straightforward, but the 49.7mm lug-to-lug measurement means it will sit longer on the wrist than the diameter alone suggests — worth knowing before purchase if your wrist runs short. The sunray blue dial shifts convincingly across different light conditions, and the five applied stars sitting below centre are a Longines house signal for movement quality rather than decoration for its own sake. Arabic numerals and diamond-shaped accents both carry Super-LumiNova, so low-light legibility is genuine rather than token. The bracelet releases tool-free through a quick-interchange system, which makes swapping to a strap a practical option rather than a workshop job. At 142.4 grams it is a substantial wear, which suits the aviation brief.
- Reference
- L38104936
- Brand
- Longines
- Collection
- Spirit
- Case size
- 40mm
- Case thickness
- 12.2mm
- Lug width
- 21mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Blue
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- ETA A31.L11
- Functions
- Date
- Water resistance
- 100m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Lume
- Super-LumiNova
- Retailer
- Goldsmiths
Additional specifications
- Lug-to-lug
- 49.7mm
- Power reserve
- 72 hours
- Origin
- Swiss made
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 3 collections
This watch appears in Stainless Steel Watches (2,366), Automatic Watches (1,159) and Blue Dial Watches (628).
Manufacturer’s guarantee
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 100m water resistance covers swimming and watersports
- 40mm suits most wrists
- Sapphire crystal, which resists scratching
- 72-hour reserve survives a weekend off the wrist
- Luminous hands and markers for low light
Compare alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | L38104936 |  H38416541 |  2741-STP-64001 |
|---|---|---|---|
| Price | £2,150 | £2,135 | £2,095 |
| Case size | 40mm | 40mm | 40mm |
| Water resistance | 100m | 100m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Leather strap | Stainless steel bracelet |
| Power reserve | 72 hours | 60 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.
Will the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Does it need a battery?
No. It is automatic — the motion of your wrist winds it, and there is no cell to replace.
How 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.
Will it fit my wrist?
Lug-to-lug is 49.7mm, which suits wrists from roughly 16.5cm (6½ inches) upward.
Lug-to-lug decides fit more than case diameter does.
Is it a men's or women's watch?
Listed as men's, though at 40mm it sits in the range that suits anyone.
Cheapest place to buy
Goldsmiths is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
Who are Goldsmiths?
Goldsmiths has been selling watches in Britain since 1778 and is part of the Watches of Switzerland Group, which is listed on the London Stock Exchange. They are an authorised dealer, so a watch comes with the manufacturer’s own warranty.
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