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Montblanc Star Legacy Full Calendar 42mm
Ref. 128677
Sits in Montblanc’s upper tier here — more premium than three quarters of the Montblanc watches we list, which start at £2,300.
Price range £2,300 to £7,200 across 16 Montblanc watches in stock.The rounded, pebble-shaped case measures 42mm across and 11.38mm thick, with polished stainless steel, stepped sides, and straight horns. An onion crown bearing the Montblanc emblem sits at three o'clock, while a transparent caseback reveals the automatic MB 24.30 calibre running at 28,800 vibrations per hour with a 50-hour power reserve. The silvery-white dial carries an exploding star guilloché pattern encircled by a railway track and filet sauté border. Black Roman numerals and blue leaf-shaped hands handle timekeeping, with the date hand finished in a red half-moon tip. Day and month apertures occupy the upper dial; the moonphase sits below. The second hand's counterweight displays the Montblanc emblem. A stainless steel bracelet with folding clasp completes the watch.
- Reference
- 128677
- Brand
- Montblanc
- Collection
- Star Legacy
- Case size
- 42mm
- Case thickness
- 11.38mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Silver
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- MB 24.30
- Functions
- Date, Moonphase
- Water resistance
- 50m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Retailer
- Goldsmiths
Additional specifications
- Power reserve
- 50 hours
- Origin
- Swiss made
Learn more about Montblanc
Montblanc was founded in Hamburg in 1906 as a fountain pen manufacturer, and the six-pointed white star that marks its products represents the snow-capped summit of the mountain. It entered watchmaking in 1997, initially as a luxury accessory line.
That changed decisively in 2007, when Richemont transferred the Minerva manufacture in Villeret to Montblanc. Minerva, founded in 1858, was one of the great chronograph specialists — it had produced its own monopusher chronograph calibres since 1908, including movements capable of measuring to a hundredth of a second, and had continued making them by traditional methods long after the industry mechanised.
Montblanc inherited that capability along with the tooling, archives, and watchmakers. The Villeret and 1858 collections now house Minerva-derived calibres with their distinctive devil's tail chronograph bridges, screwed balance wheels, and hand-finished components — genuine high horology at a house most people associate with pens.
The volume side of the business, produced at Le Locle, covers the Heritage, Star Legacy, and TimeWalker lines, and the 1858 Geosphere with its twin rotating hemisphere globes has become the signature model.
Montblanc has also pursued smartwatches through the Summit range and remains part of Richemont.
- 1906
- Founded in Hamburg as a fountain pen manufacturer.
- 1997
- Watchmaking begins at Le Locle.
- 2007
- The Minerva manufacture at Villeret is transferred to Montblanc.
- 2018
- The 1858 Geosphere becomes the signature model.
Also in 5 collections
This watch appears in the Montblanc Star Legacy range (7), Stainless Steel Watches (3,157), Automatic Watches (1,753), Silver Dial Watches (711) and Watch Price Drops (334).
Manufacturer’s guarantee
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- Sapphire crystal, which resists scratching
- One of Montblanc's more premium watches
Worth knowing
- 50m suits rain and handwashing, not swimming
Price history
This watch is currently at its lowest recorded price. It reached £5,500 on 10 August. Prices are checked every day, and we record any changes.
Montblanc Star Legacy Full Calendar alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | 128677 | 34237AA95.BVA103 | FC-718NWM4H6 |
|---|---|---|---|
| Price | £4,500 | £4,500 | £3,995 |
| Case size | 42mm | 42mm | 42mm |
| Water resistance | 50m | 50m | 50m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Leather strap | Leather strap |
| Power reserve | 50 hours | 38 hours | 38 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?
Showering yes, swimming no. 50m covers splashes and brief immersion, but a swimming stroke generates well above the pressure that figure describes.
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 50 hours fully wound — enough to survive a night off the wrist, but not a full weekend.
Cheapest place to buy
Goldsmiths is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
Has the price changed recently?
It's currently at its lowest recorded price since we began tracking it. It's ranged between £4,500 and £5,500, today it's £4,500.
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