43031, First Series Quantième Perpétuel, Yellow Gold
A First Series ref. 43031 Quantième Perpétuel in 18k yellow gold with a light cream dial. The 43031 is a distinguished neo-vintage reference, Vacheron Constantin’s first serious return in the wake of the quartz crisis. It features an automatic calibre 1120/2 QP, a JLC 920 ébauche finished to Geneva Seal standard with a beryllium rotor rail, lapis moonphase disc, dial signed with sigmas but no automatic line, solid back, and impressive 8mm thinness to its 36mm case. It’s more than a watch, it’s a celebration of classical, complicated mechanical watchmaking’s permanence in Switzerland.