Vacheron Constantin SJ Production .MKS proudly presents the Vacheron Constantin VC RK4 506 series E large three-hand watch. The only all-in-one version on the market that seamlessly transitions between sports and business, combining style and taste! .1. Equipped with a custom movement, leading the era of all-in-one watches! .2. The stainless steel case perfectly fits the wrist, with an ultra-thin thickness of 9.2mm that enhances its elegance. The mirror surface is made of sapphire crystal glass, ensuring all specifications are truly consistent with the original.3. The strap features the finest Italian craftsmanship, hand-sewn by the original VC factory.4. Original 18mm Maltese Cross butterfly clasp S1, a refined recommendation for men's mechanical watches.