The watch is also easy to set. Using the pusher at 8 o’clock, you can move the city ring so that your time zone is at 6 o’clock. Then, by pulling out the crown, you can set the hour and minutes hands accurately for that time zone. The remaining 23 time zones around the dial follow suit. Once the hands have been correctly set, it’s simple to adjust the time zone when you travel. By pressing the pusher at 8 o’clock, the local time (via the red arrow) can be shifted in one-hour increments; the cities, as well as the earth display at the center, will move with it.
The watch has Montblanc’s manufacture caliber MB29.20. It is an automatic movement with a 42-hour power reserve. It has a frequency of 28,800 vph and 26 jewels. The Orbis Terrarum has a stainless-steel case. Its diameter is 41 mm and its thickness is 12 mm. Horizontal finishing can be seen around the case middle. It is water resistant to 30 meters. The domed sapphire crystal is nonreflective; the caseback is made of stainless steel but has a small sapphire crystal window, through which you can see the rotor. The watch comes on a black alligator strap with a triple folding clasp.
The Heritage Spirit Collection, started in 2014, was originally known as the Meisterstück Heritage Collection. (The original name was taken from Montblanc’s famous Meisterstück line of pens.) Highlights of the collection so far have included a perpetual calendar, a pulsograph, and a moon-phase.
As shown here, the Orbis Terrarum costs €4,990 (approximately $6,075). It is also available on a bracelet, at €5,250 ($6,400), and in rose gold on a strap, at €13,900 ($16,900).
Below are two wrist shots of both the steel and gold versions of the Montblanc Heritage Spirit Orbis Terrarum, taken at SIHH 2015.