I am 6'3", decent sized as well, and I enjoy my blued hands grand classic, it wears about as perfect as a watch on a bracelet can for me. As has been stated though, the decision would be all about budget for me. They are both nice watches that will last for years. If I could comfortably purchase the Citizen, I would. If not, I would purchase the Seiko and never spend a second feeling as though I "settled", because it is a great watch, especially for the money.