You people must have been wondering why wristwatches are worn on the left hand mostly?
Here is your answer
"Wristwatches with analog displays
generally have a small knob, called the
crown, that can be used to adjust the
time and, in mechanical watches, wind
the spring. Almost always, the crown is
located on the right-hand side of the
watch. This makes it inconvenient to use
if the watch is being worn on the right
wrist. Usually, therefore, watches are
worn on the left wrist, even if the wearer
is left-handed.
In exceptional cases, the crown is on the
left side of the watch. This is, for
example, to prevent it from digging into
the wrists of golf players.
Digital watches generally have push-
buttons that can be used to make
adjustments. These are usually equally
easy to use on either wrist." http://
en.wikipedia.org/wiki/
Watch#Handedness
As a major proportion of the population
are right handed, so a major proportion
of watches go on the left wrist. I am a
'rightie' and would have trouble doing
up the buckle with the left hand; also,
when dinosaurs ruled the earth, watches
had to be wound up every day, and this
was much easier to do with the
dominant hand.

Thanks, never knew