I bought an Eterna Four Hands as a gift a while ago & the recipient has noticed that they are unable to set the watch to 'on the hour' eg if they try to set the watch to 3 o'clock the minute hand is on the 12 but the hour hand is in the middle of the 3 & 4?

I have offered to sort it for them (as I bought it) but I don't fancy sending it back to Eterna. Can anyone tell me if this is an easy (cheap) fix for a watch repair specialist?