2 Wrist Watches Had Winders on the Right
The main reason for the watches worn on the left hand was because most people are right handed. Moreover the manufacturing characteristics all made it easier to tell time when the watch was worn on the left. Perhaps a bigger reason was that early wrist watches required winding every day and this was required to be performed by the right hand. If you have ever noticed an old wrist watch belonging you your granddad, you’ll see that the little knob for winding is on the right of the watch. When the quartz automatic watch was invented that required no winding, the knob was still there to change time and set dates.