Not all bottles carry “Grand Cru” or “Premier Cru” mention.
For “Grand Cru”, 100% of the grapes used for the cuvee have to be from plots classified “Grand Cru”.
“Premier Cru” can be indicated when 100% of the grapes included in the blend comes from plots classified “Premier Cru”, or if it is a cuvee of grapes from plots “Grand Cru” and “Premier Cru”.
In all other cases, nothing is mentioned.
Keep in mind, champagne has 319 “Crus” --- 17 classified “Grand Cru”, 42 “Premier Cru” and 260 without distinction.
According to Wine Enthusiast, this wine is rich while also textured with tight minerality and tense acidity with the weight expected from a 100% Pinot Noir wine. It is dry, concentrated with the weight of two Grand Cru vineyards behind it. The wine is just ready to drink.