When it comes to watches, southpaws often get the short end of the stick. Unless lefties buy a destro watch, they have to learn to wear watches on their dominant hand instead of the nondominant hand as recommended. But that doesn’t have to be the case with all smartwatches. Because smartwatches have touchscreens, some watch manufacturers have given lefties the option of flipping the screen orientation so it appears “upside down.” This, in turn, gives users greater control over where…