Only 50 bottles of whisky - distilled in November 1968 - will go on sale globally, with each buyer invited to an exclusive experience at The Glenrothes Highland Estate and Distillery.
After 50 years maturing in sherry and Bourbon oak casks, the whisky has been decanted into individually numbered handmade faceted crystal decanters which are presented in lacquered black presentation cases.
Laura Rampling, master whisky maker at The Glenrothes, said: "This 50-year-old single malt is a dramatic blend of aromas with layers of complexity only a whisky of this age can deliver - truly luxurious, dark and fragrant."
Kerr Arthur, director of The Glenrothes brand, said: "As our oldest ever release, this 50 Years Old is a salute to the loyalty and craft of our distillery team, several of whom have more than 40 years' service. They truly understand the art of whisky making the Glenrothes way and now 50 people will have the privilege of sharing in this milestone release."
In their distillery experiece, purchasers of the 50 Years Old will get see behind the scene at The Glenrothes - a rare experience as the secluded estate, which includes the distillery, cooperage, private farms and Rothes House, is normally closed to visitors.