Dear Buyers, offered for sale this vintage Swiss wrist watch TECHNOS BIRKA. Movement is Swiss Felsa 391 with 15 jewels. Stainless steel case in excellent condition. Stainless steel back cover . The watch is working and it keeps good time. The dial have some tarnished areas and scratches. The watch condition is age related vintage, but generally is well preserved, please look at the pictures for more details.