Renato, I have Seagate external drives, thus far never a problem. The only drive I ever had that crapped itself was Western Digital. Probably luck of the draw, I know they are mechanical devices and hence will eventually die, a bit like us I suppose
Generally I have found the old "seacrate" very reliable. A tech I knew years ago said that he had tested them by dropping them on a concrete floor and not one had expired as a result. Maybe they are made elsewhere now and not subject to the better QC that they once were.
As you probably know you can get SSD external drives now, ok more expensive, but no moving parts and I believe anywhere from 3 to 5 yrs warranty.