Also, what is a "Land Dweller" when in context of a watch? Sea Dweller makes sense - dive watch. Sky Dweller makes sense too - although it takes more interpretation and context - calendar watches are notoriously not welcome to be adjusted - thus for a frequent air traveler who traverses time zones frequently, owning an annual or perpetual calendar can be problematic as it may damage or de-synchronize the watch when traveling between timezones. Thus, "Sky-Dweller" for a watch for someone who travels by air (presumably air) frequently makes sense.