Jaeger-lecoultre, Master 18k white Gold diamond, model: Q1613401, men's wristwatch, 40mm in diameter. This is the top complex model of the Master series. It integrates perpetual calendar, moon phase and 8-day power reserve full functions within the minimalist frame of a dress watch. With a 40mm diameter, it is suitable for thicker men's wrists. The 12.1mm thickness ensures a good fit between complex functions and formal wear. The 18K white gold diamond-set design makes it suitable for high-end occasions such as formal dinners and business negotiations. The collection attribute is stronger than daily commuting.