Bought in Thailand in 2021 from Pergo Chairs, an officially authorized reseller for Herman Miller. Sales receipt is available to buyers. Fully Featured Top Model - - Aluminium and Polished Graphite base - PostureFit SL (additional adjustment options) - extra Herman Miller Headrest New price for this Aeron chair at Pergo Thailand is 78,200 THB. Warranty still 7 years left of 12-year warranty without any service cost by Pergo Chairs Thailand.