UGEARS Models 70218 - Ugears Date Navigator 2.0UGEARS UG70218 Mechanical Date Navigator 2. 0 A Fascinating Mechanical Wooden Calender Navigator! Everyone faces with the question when planning activities during a week: what day of the week it is going to be. Usually we look at a smartphone or a datebook. Surprise your family, friends and colleagues with an original mechanical calendar navigator that is also built with your own hands! The Ugears Date Navigator is an interesting mechanical calendar