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Longines Master Collection Chrono Monopusher 41mm Mens Watch Frosted Blue Dial
Ref. L29604932
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Stepping up in Longines's range
The Master Collection has carried date displays, moon phases and twin-register chronographs, but until this piece arrived in 2026 it had never housed a monopusher. That decision is not cosmetic: the single pusher integrated into the crown is a direct echo of how Longines built its earliest wristwatch chronographs from 1911, and the L799.5 that powers it — developed with ETA and fitted with a silicon balance spring — brings the column-wheel mechanism that defined those movements into a modern calibre beating at 28,800vph with a 68-hour reserve. The frosted barleycorn texture across the blue dial does something useful beyond looking well: it catches raking light differently from the snailed subdial recesses, so the surface reads with more depth than a flat dial of the same colour ever would. The pulsometer scale at the outer edge is period-appropriate to the archival references and functional rather than decorative. Because the L799.5 winds by hand there is no rotor adding height, and at 12.6mm the case wears notably flatter on the wrist than most mechanical chronographs of this complication. The exhibition caseback earns its place here — the column-wheel that sequences start, stop and reset through a single pusher is genuinely worth watching operate, and most owners discover relatively quickly that they are flipping the watch over as often as checking the time.
- Reference
- L29604932
- Brand
- Longines
- Collection
- Master Collection
- Case size
- 41mm
- Case thickness
- 12.6mm
- Lug width
- 21mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Blue
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- L799.5
- Functions
- Chronograph, Small seconds
- Water resistance
- 30m
- Bracelet / strap
- Leather strap
- Strap colour
- Grey
- Clasp
- Folding clasp
- Lume
- Luminous
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 48.6mm
- Power reserve
- 68 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 7 collections
This watch appears in the Longines Master Collection range (47), Back in Stock (4,792), Stainless Steel Watches (3,164), Automatic Watches (1,693), Chronograph Watches (1,205), Leather Strap Watches (1,044) and Blue Dial Watches (872).
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What the specifications mean
A mechanical watch for everyday wear.
Strengths
- Sapphire crystal, which resists scratching
- 68-hour reserve survives a weekend off the wrist
- Luminous hands and markers for low light
Worth knowing
- 30m means keeping it away from water
Longines Master Collection Chrono Monopusher alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | L29604932 | 2020.003S | 35123TA02.BMT12 |
|---|---|---|---|
| Price | £3,350 | £3,700 | £3,290 |
| Case size | 41mm | 41mm | 40mm |
| Water resistance | 30m | 50m | 50m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Leather strap | Fabric strap | Stainless steel bracelet |
| Power reserve | 68 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.
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 68 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 48.6mm, which suits wrists from roughly 16.5cm (6½ 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.
Cheapest place to buy
Both Mappin & Webb and Goldsmiths list it at £3,350, so choose on delivery and warranty rather than price.
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