As watch lovers know, a watch should reflect the wearer’s personality, style and taste. Today’s innovative complications include shape changers, skeleton watch faces, limited editions inspired by people and events, and state-of-the-art materials like titanium and precious stones. However, perhaps the most functional complications to-date are the chronograph, dual-time-zone capability or GMT, power reserve and calendar functions. You can be sure 2016 will bring about plenty of opportunity for watchmakers to experiment further with haute horology. Here are three segments that were trending in 2015.