wristwatch just might be the most difficult decision a man or woman has to make in their entire life. If you just keep hemming and hawing, why not add a little more confusion to the mix with Kisai's Sensai? This lightweight piece is constructed from high grade aluminum, and it supposedly uses "positive shapes and negative lines" in order to create a face that's impossible to ignore. The LEDs beneath the metal tell time in code, a process that reportedly takes between eight and ten decades to master. Thankfully, instructions are provided in both English and Japanese, though native Yiddish speakers may have some difficulty piecing it all together. Purchase at your own risk.