Editorial
The Star Legacy Moonphase is Montblanc's clearest argument that the brand belongs in a serious watch conversation. A classical moonphase at 6 o'clock, a properly in-house movement, and a 42mm steel case that fits the dress category without being precious about it. No tricks, no gimmicks , just a traditional complication done at a price that leaves money on the table for the next watch.
Montblanc relaunched the Star Legacy family as its core traditional round dress line in 2018, repositioning the brand away from its pen-company-makes-watches reputation toward genuine manufacture credibility. The 128682 arrived with the MB 29.21, an in-house automatic with 68 hours of power reserve and a moonphase display that advances roughly once every 29.5 days, accurate to one day every 122 years. The Star Legacy case is clean and conservative, with a dial layout that puts the moonphase at 6 and a date window at 3.
This is not a complicated watch in any engineering sense, but it is a considered one. Montblanc has kept the reference in active production since launch, which speaks to steady demand from buyers who want the complication without paying Patek or Lange prices.
The moonphase disc on early examples has been reported to sit slightly proud of the dial aperture on a small percentage of units , inspect the display aperture closely before accepting delivery, new or pre-owned. The alligator strap on new examples is decent but not exceptional; budget for a replacement if you plan to wear this regularly. Water resistance is 30 meters, which is fine for a dress watch but means splash exposure only , do not swim in it.
Pre-owned pricing has compressed as supply has grown, so paying above the current grey market rate for a lightly worn example is difficult to justify. Verify the power reserve indicator if the watch has a display back version; the 29.21 does not have one on the 128682, but this reference is sometimes confused with other Star Legacy variants that do.