Likewise, 4-5 hours is quite a long time. Did you have to keep relighting it? Properly smoked a cigar shouldn't go out at all. If it worked for you that's really all that matters. I've smoked a cigar in about 4 hours, but it was a Tatuaje RC233, which is a 56 ring gauge over 9 inches in length.
A quote from Winston Churchill upon relighting one of his famous Cubanos: "Slightly gamier when resurrected"