Vacheron Constantin Fifty‑Six Complete Calendar Watch, model 4000E000A‑B548B439B438B065

Case size 40mm×13mm. Screw‑down crown and box‑shaped sapphire crystal glass. Rectangular week and month windows at 12 o’clock. Peripheral date track indicated by blued arrow‑shaped hand. Moon‑phase display at 6 o’clock with deep‑blue sky and white‑gold moon motif. White‑gold Arabic numerals and baton hour markers. Newly‑developed 2460 Q1 automatic‑winding movement. Balance wheel, quick‑adjust pushers and date‑hand position match original specifications. Grained Italian calfskin strap. Polished steel folding buckle with semi‑Maltese‑cross shape.