The whisky is part of the distiller's Generations brand and follows in the footsteps of Mortlach 70 Year Old.
David and Michael Urquhart, joint managing directors of Gordon & MacPhail said: “Following on from the phenomenal success last year of Mortlach 70 Year Old, we decided to release this sister Generations cask as there is clearly an enormous demand for greatly-aged scotch malt whiskies.
The 70 YO single malt, which was laid down in 1940 by David and Michael Urquhart’s grandfather, John Urquhart, will be released on a staggered basis.
This year, 100 70cl bottles and 175 20cl bottles - priced at £3,200 each - will be released.
The expression was matured in a first-fill sherry butt, and bottled at cask strength of 45.9% abv.
It is housed in a “tear-shaped hand-blown” crystal decanter with a silver stopper and is presented in a “handmade” Scottish elm box.
The 70 YO forms part of The Glenlivet Decades collection, which includes a whisky from each decade from the 1940s to the 1990s.
David and Michael Urquhart added: “Altogether, these six whiskies represent the liquid lifetime of The Glenlivet, and six decades of experience, dedication and passion on the part of our family.
“We’re confident that this investment has resulted in a suite of whiskies of unparalleled quality: a real collector’s piece.”
The whiskies will be revealed to an audience of invited guests at a 1940s-themed ceremony at Edinburgh Castle.