Vacheron Constantin Traditionnelle 4010T/000R-B344 White Opaline Calendar White Opaline Finish

The B344 organizes a busy display without giving it a heavy look. Day and month occupy their upper windows, the date follows the outer track, and the white opaline dial leaves a bright field between the indications. A rose-gold-tone stepped bezel introduces color around that field. The result feels more formal and luminous than the slate-grey B740, even though both serve the complete-calendar buyer.

At 41mm across and 9.8mm thick, this reference balances display area with a relatively shallow side profile. Its leather strap closes with a deployant clasp, keeping the wearing experience closer to a structured dress watch than a simple pin-buckle model. The dial layout makes the difference visible: each calendar indication has a clear place without making the watch look tall at the side.

Choose the B344 if the calendar is meant to stay legible against a bright dial and the case color should bring warmth to the wrist. The B740 suits a cooler palette and gives the indications a darker background. Neither is just a color swap in use: the white face and warm bezel change how much visual space the calendar appears to occupy.

Before dispatch, our QC team reviews day and month window registration, the peripheral date indication, stepped bezel finish, and deployant clasp engagement.