Montblanc Star Twin Moonphase 42mm Swiss Automatic Moon-Phase Silver Dial


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The new Star Twin Moonphase shows all the recognizable Star collection style elements. It’s a blend of classic elegance and characteristic formal, with a load of visual treats like the guilloche dial, the blued hands and what I personally like so much, is the font of the Arabic numerals.

Let’s immediately address what some of you have been thinking. No, the double moon phase is not just a gimmick. All moon phase indications that I’ve seen so far, always indicate the moon phase for the Northern Hemisphere. Logical you might say, as pretty much all watches are created on the Northern Hemisphere.

On the Northern Hemisphere the moon phase appears differently on the than on the Southern Hemisphere. Of course the lunar phases follow one another in the same sequence regardless of an observer’s location: full moon is full moon and waxing moon is waxing moon. However seen from the Southern Hemisphere everything is a mirror image compared how things can be seen from the Northern Hemisphere.

Besides the double moon phase indication, the Star Twin Moonphase also show the age of the moon. The moon’s age is shown in days along the periphery of the subdial. The upper part shows the familiar moon-phase display in a characteristically shaped window, in which the gold-colored moon is depicted on a dark blue background.

The moon moves from left to right and gradually disappears, just like it can be seen from the Northern hemisphere. The surface below features a pattern shaped like the Montblanc emblem and is surrounded by moon-phase symbols as they appear in the sky above the Southern Hemisphere.

All functions are powered by the Montblanc caliber MB 29.13, which can be seen through a sapphire crystal in the case back. The automatic winding movement has 42 hours of power reserve and ticks at a steady pace of 28,800 vibrations per hour (4 Hz). Atop the base movement is a module for the moon phase indications. And before we forget it, the Star Twin Moonphase also indicates the date! 

All this is presented in a stainless steel round case, measuring 42 mm in diameter and 12.7 mm in height. On the dial side is a domed sapphire crystal with antireflective coating. It comes on an alligator leather strap with large scales, with a triple folding stainless steel clasp The Montblanc Star Twin Moonphase will be available in Montblanc boutiques and at other retail points in the autumn of 2014.



  • Case: stainless steel, 42 mm in diameter, 12.7 mm in height, domes sapphire crystal with anti reflective coating in the front, sapphire crystal in case back
  • Movement: Montblanc caliber MB 29.13, automatic winding, 42 hours of power reserve, 28,800 vph (4Hz), 27 jewels,
  • Indications: hours, minutes and seconds, moon phases depicted as they appear in the Northern and Southern Hemispheres, age of the moon, pointer date
  • Strap: black alligator leather strap with large scales, triple folding clasp in stainless steel

What a Gorgeous watch with an incredible Swiss Movement! Best of all, you can view this incredible Swiss movement through the Sapphire crystal exhibition case back.

BRAND: Montblanc

MODEL: Star Twin Moonphase

CONDITION – Pre-Owned – Virtually As-New! 

CASE – Stainless Steel

MOVEMENT – Swiss Automatic

DIAL – Silver Guilloche Dial with Moonphase, Retrograde Date & Blued Steel Hands

CASE BACK – Sapphire Exhibition case back

BEZEL – Non-rotating

CROWN – Push/Pull Crown

CRYSTAL – Sapphire

LUGS – 22mm


STRAP –  Original Montblanc Black Alligator leather strap with signed steel deployment buckle

DIMENSIONS – Case 42mm

BOX/PAPERS – 100% Complete Box Set, Manual, Warranty card, Pusher Tool, etc  – Everything Included in pictures!



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