In general, modern watches often display the day, date, month, and year. For mechanical watches, various extra features called "complications," such as moon-phase displays and the different types oftourbillon, are sometimes included.[5]Most electronic quartz watches, on the other hand, include time-related features such astimers,chronographsandalarmfunctions. Furthermore, some modern watches (like smartwatches) even incorporatecalculators,