Many people new to watches will notice that there is a whole vernacular that applies to the industry. In “watch parlance,” a complication is a display or function that does not serve the watch’s central purpose: to tell the time. Therefore, if there is a watch with displays of the hours, minutes, the day, the date and a moon phase, the last three would count as “complications,” because they do not serve the central purpose of the time (hours and minutes). Complications can range from displays as simple as the date or the day to various types of chronographs, power reserve displays, displays of the equation of time, and audible indication of the time (to name only a few).