The customary placement of a timepiece on a man’s wrist is typically the non-dominant hand. For example, a right-handed individual would generally wear a watch on the left wrist, and vice-versa. This practice allows for ease of use of the dominant hand without the encumbrance of the watch.
This convention stems from practicality and tradition. Wearing the watch on the non-dominant hand minimizes the risk of damage during daily activities that require fine motor skills and greater dexterity, often performed by the dominant hand. Historically, before the advent of digital displays, winding and setting the watch was also easier with the dominant hand free.