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Longines Legend Diver 39mm Mens Watch White
Ref. L37644166
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Stepping up in Longines's range
The Lindbergh Hour Angle 47.5mm Mens Watch£5,050
Conquest Stainless Steel Automatic 42mm Mens Watch£3,650
Master Collection 30mm Ladies Watch Stainless Steel and 18ct Rose Gold£3,650
Master Collection 30mm Ladies Watch Stainless Steel and 18ct Yellow Gold£3,650
Conquest Stainless Steel Automatic 42mm Mens Watch£3,650
The Legend Diver traces its form to the super-compressor cases of the 1960s — a double-crown construction in which one crown sets the time and the other, positioned at 2 o'clock, drives the internal rotating bezel. Moving the scale inside the crystal rather than outside it was both a design choice and a practical one: the bezel cannot be knocked off its setting by contact with a tank or a hull. This 39mm version retains that architecture faithfully while pulling the lug-to-lug distance down to 47mm, a dimension that puts it within reach of wrists the earlier 42mm format excluded. The movement underneath is the L888.6, a calibre built on an ETA base but modified to a degree that makes the comparison largely academic — COSC-certified, running a silicon balance-spring for antimagnetic resilience, and beating at 3.5 Hz rather than the standard 4 Hz to stretch the power reserve to 72 hours. That frequency is unusual enough to be a considered decision rather than an incidental one. The white matte dial gives the watch a clean, almost clinical face that reads quickly at depth, and the beads-of-rice bracelet carries a tool-free micro-adjustment system in the clasp — a small thing that matters considerably when a drysuit sleeve changes the wrist size between morning and afternoon.
- Reference
- L37644166
- Brand
- Longines
- Collection
- Legend Diver
- Case size
- 39mm
- Case thickness
- 12.7mm
- Lug width
- 20mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- White
- Crystal
- Sapphire
- Bezel
- Unidirectional rotating
- Movement
- Automatic
- Calibre
- L888.6
- Functions
- Date
- Water resistance
- 300m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Lume
- Luminous
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 47mm
- 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 6 collections
This watch appears in the Longines Legend Diver range (15), Back in Stock (4,361), Stainless Steel Watches (2,892), Automatic Watches (1,554), Sports Watches (708) and Dive Watches (495).
Best of 2 retailers
What the specifications mean
A mechanical watch built to be worn hard and got wet.
Strengths
- 300m water resistance, rated for actual diving
- 39mm suits most wrists
- Sapphire crystal, which resists scratching
- 72-hour reserve survives a weekend off the wrist
- Luminous hands and markers for low light
Longines Legend Diver alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | L37644166 | 171900000061 | 129372 |
|---|---|---|---|
| Price | £3,150 | £2,995 | £3,300 |
| Case size | 39mm | 40mm | 41mm |
| Water resistance | 300m | 300m | 300m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Rubber strap | Rubber strap |
| Power reserve | 72 hours | 38 hours | 38 hours |
| This watch | Closely matched |
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 300m it is rated for swimming, snorkelling and recreational 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?
20mm. 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 47mm, which suits wrists from roughly 16cm (6¼ inches) upward.
Lug-to-lug decides fit more than case diameter does.
How to size a watch to your wristIs it a men's or women's watch?
Listed as men's, though at 39mm it sits in the range that suits anyone.
Cheapest place to buy
Both Mappin & Webb and Goldsmiths list it at £3,150, so choose on delivery and warranty rather than price.
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