1967 Bizzarrini (btw, don't own it, just love it)
I bought the HON V705, and it was truly built like a tank in every aspect, held my weight easily. The problem was, its shape just killed my sacrum. I can't explain why, it was like my backside went too far back or something. I tried to make it work for months but it just killed me. I went back to the OfficeStar 2400E that I listed above and couldn't be happier. Just order the $18 gas cartridge I listed and this chair that's technically rated at 250 lbs easily becomes a 400 lb chair.