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Longines Flagship Classic 30mm Ladies Watch White
Ref. L43743907
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Stepping up in the same colour and case shape
The Flagship is among Longines' oldest continuous lines, introduced in the 1950s as the house's argument for dress watchmaking at its most restrained. The 30mm case sits exactly where a dress watch on a smaller wrist should — present without bulk, with the white matte dial reading cleanly whether the light is direct or dim. The movement inside is worth pausing on. The silicon balance-spring is not a cosmetic detail: it resists magnetic fields that would disturb a conventional hairspring, and it contributes to a 45-hour reserve that means a watch worn through the week, set aside for a weekend, and picked up Monday morning will still be running. For a bracelet watch worn as an everyday piece, that matters in practice.
- Reference
- L43743907
- Brand
- Longines
- Case size
- 30mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- White
- Crystal
- Sapphire
- Movement
- Automatic
- Functions
- Date
- Water resistance
- 30m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Retailer
- Goldsmiths
Additional specifications
- Power reserve
- 45 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 4 collections
This watch appears in Stainless Steel Watches (2,531), Automatic Watches (1,573), Watches Under 37mm (1,342) and Women's Watches (1,233).
Temporarily out of stock
Mappin & Webb is not currently taking orders for this reference. Last listed as available on 26 September 2026. Stock is checked nightly and this page updates when it returns.
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 30mm wears small and slips under any cuff
- Sapphire crystal, which resists scratching
- Sits in the lower half of Longines's range as we list it
Worth knowing
- 30m means keeping it away from water
Longines Flagship Classic alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | L43743907 | FC-206MPWD1S3B | R12170253 |
|---|---|---|---|
| Price | £1,550 | £1,195 | £1,500 |
| Case size | 30mm | 30mm | 30mm |
| Water resistance | 30m | 30m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Stainless steel bracelet | Stainless steel bracelet |
| Power reserve | 45 hours | — | 48 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 45 hours fully wound — enough to survive a night off the wrist, but not a full weekend.
Is it a men's or women's watch?
Listed as women's.
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