[Montblanc Watches] Montblanc Star Leagcy Bright Star Moon Phase Plate Diameter 42mm Thickness 10mm Quenching process blue steel needle Heavy investment in construction Pelletteria Italian cowhide triple fold MB 29.14 movement Six moon phases and dates An invisible button is provided at the 4th position of the case to quickly adjust the date Presents the lunar phase disk and date display function in the most straightforward way Has both practical functions