Mine came from Germany via Ebay, took me a while to find a real leather one, the arm rest and base are aluminium, often people say 'i like that' when they see it. Havent seen anything resemble it. Was less than 200, my purchase history doesnt back that far on ebay now, had it maybe 5 year.
Maybe translate 'leather office chair' into german and search ebay.de
Edit:
Just found it! Underneath was a sticker 'Skyport Group GMBH'.
In black, more than I remember paying, but if thats the price & I needed to replace...
Amstyle Bürostuhl AUSTIN Echt-Leder Schwarz Schreibtis