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Longines Master Collection Chrono Moonphase 41mm Mens Watch Silver Dial
Ref. L29624732
Sits in Longines’s upper tier here — more premium than three quarters of the Longines watches we list, which start at £1,050.
Price range £1,050 to £22,850 across 292 Longines watches in stock.The Master Collection has always been Longines' argument that complication and legibility can share a dial without compromise, and this generation of the chrono moonphase makes that case more convincingly than its predecessors. The concave bezel is the key change: by drawing the edge inward it opens the dial visually without enlarging the case, so the barleycorn silver dial — with its applied blue Arabic numerals, subsidiary seconds, moonphase aperture and chronograph registers — has room to breathe at 41mm in a way earlier iterations did not quite manage. The movement beneath is the L687.5, Longines' own column-wheel automatic chronograph built on the architecture of the Valjoux 7751 but brought forward with a silicon balance-spring and a 66-hour power reserve. That reserve means a watch worn five days a week and left on the nightstand over a long weekend comes back wound. At 103 grams on the wrist, the watch has presence without weight that accumulates through a day. The deployant clasp on the alligator strap carries a push-piece micro-adjustment mechanism — a small thing, but it means fit changes with a jacket sleeve rather than requiring a link removal, and on a strap this good the closure deserves attention.
- Reference
- L29624732
- Brand
- Longines
- Collection
- Master Collection
- Case size
- 41mm
- Case thickness
- 13.80mm
- Lug width
- 21mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Silver
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- L687.5
- Functions
- Chronograph, Date, Small seconds, Moonphase
- Water resistance
- 30m
- Bracelet / strap
- Leather strap
- Strap colour
- Blue
- Clasp
- Deployant clasp
- Lume
- Luminous
- Retailer
- Goldsmiths
Additional specifications
- Lug-to-lug
- 48.60mm
- Power reserve
- 66 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.
Manufacturer’s guarantee
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- Sapphire crystal, which resists scratching
- 66-hour reserve survives a weekend off the wrist
- Luminous hands and markers for low light
- One of Longines's more premium watches
Worth knowing
- 30m means keeping it away from water
Compare alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | L29624732 |  2020.001S |  35123TA03.BMT12 |
|---|---|---|---|
| Price | £3,550 | £3,700 | £3,490 |
| Case size | 41mm | 41mm | 40mm |
| Water resistance | 30m | 50m | 50m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Leather strap | Fabric strap | Stainless steel bracelet |
| Power reserve | 66 hours | 38 hours | 56 hours |
| This watch |
|
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
No. At 30m it will survive rain and handwashing, but not submersion of any kind.
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 66 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 48.60mm, 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.
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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