Soldato
IIRC it was originally worn on the left wrist because that is where the crown pin (right name?) is most accessible for adjustment, that pin generally being on the three o'clock position....
Anyway, left here, it is proper. Or so I was always told. That said I detest wearing one at all and rarely do.
Anyway, left here, it is proper. Or so I was always told. That said I detest wearing one at all and rarely do.