When it comes to sales in a variety of market, advertisers leave no stone unturned in pursuit of an edge. On top of pleasing lighting and presentation in advertisements, they also enlist time itself to help sell the watch.
If you have an eye for details, then you may have noticed that the watch and clock faces in advertisements are always set to 1
When the hands of an analog watch face are set to different times, the hour and minute hand create simple shapes. Of all the potential times a watch face can display, advertisers have found that people responded most positively to images of watch / clock faces set at 10:10. The response has nothing to do with the actual time, but with the arrangement of the hands themselves — 10: 10 is as close to a smile as a face is capable of displaying and has a very pleasing symmetry. But subtle it might be, shoppers prefer to watch that smiles at them.
Advertising tricks aren't limited to just analog displays. For digital clocks, there's an advertising rule of thumb too. You can arrange a digital display at the same time as smiling face, but you can arrange the numbers so that they evoke positive feelings. People responded positively to numbers of increasing size and negatively to numbers of decreasing size. As a result, you often see advertisements for digital alarm clocks and such with a display readout of 12:38, 12:48, etc. Why the 8? Again, consumer research indicates that there is a certain appeal to a glowing display that ends with a nice full figure 8.