personally, have had better experiences with citizen, all experience coming with dive watches. to me the citizen watches are more comfortable, although I've had to change the citizen rubber bands more than the seiko rubber bands. All the citizen watches I've owned have been quartz and all the seiko brands being automatic, so the accuracy issue is unfair, being that my seiko's have been off for a while. So all in all, I personally like citizen more, but for the most part have enjoyed both brands. I do see them as very comprable brands and very similiar in all aspects, just perfer citizen.