This is made by the Mayor of Hautvillers, the village where Dom Perignon first invented champagne. You can't be the mayor if you don't make some quality bubbly. The Henri Martin has been matured for an extra year than the Brut, giving it a warm richness and depth.
There are photos in chez Lopez-Martin showing Miss France of 1930 carrying a bottle of Henri Martin in Paris. 80 years on, this is still a beautiful champagne for beautiful people