People tend to behave and present themselves differently depending on the specific situation. The intrinsic nature of a person does not change however he/she might be perceived differently for example at formal event vs an informal party with close friends or family. The difference in perception is essentially driven by two elements: the behavior itself and the presentation/look of the person. In fact people tend to define their look depending on the specific occasion while always keeping to certain extent a link to their overall personal style.
Jewelry and watches are an integral part of the look of a person and as such they are generally chosen based on both the personal style and the specific occasion. Some people might even be able to afford a collection of watches to use in different occasions. The people who cannot afford a collection tend to buy a watch that fits their personal style and tends to be versatile enough to be used for multiple occasions. For simplicity we frame the different kind of watches based on the three main styles (columns in below table) and the three main occasions (rows in below table). However, reality is much more complicated and styles/occasions don’t always have a clear cut.
Those are the main types of watches, but distinction is not always “black and white” and some watches might easily be classified under multiple types. For example the first collection of Todd & Marlon watches #YOURTIME 24-hour could be classified as “Design” watch (winner of the A’Design Award 2016) or as fashion watch.