There are a number of reasons why people want to invest in watches. A watch is a good time keeper-All watches tell the time of day. What’s more, there are other functions that watches have. No matter how many functions or how amazing the function is, they do add intrinsic value to a watch and appeal to a collector.

People who enjoy the simple life will show more interest in a watch with simple functions. A timepiece indicating only hours and minutes is known as a simple movement. There are some watches beyond the simple display of hours and minutes. Date display is probably the simplest complication, yet also the most useful, the date display is exactly what it sounds like – it tells you the date. It was Rolex that invented the date function in wristwatches. In 1945, Rolex Datejust replica became the very first automatic chronometer certified wristwatch with a date window. The day date is a slightly more advanced version of the date display. The only difference between a date display and a day-date display is that the day date tells you the day of the week in addition to the date of the month. 

People who love the outdoors activities will show great interest in a Emergency call watch which is launched by a Swiss company. This is the world's first built-in small transmitter watch, and the purpose is to help rescue workers search for lost climbers, gliding movement sporter or trek skydiving as soon as possible. Users simply need to take the antenna, the transmitter can send in the distress signal that can be received within a radius of five kilometers to 20 male. The electrical household is two milliwatt transmitter, which can transmit signal for 18 days, athletes that meet troubles during the period still can use polished steel watch base plate to reflect sunlight, so as to attract the attention of rescue pilot. This watch is using quartz timer designed for help.