Jaeger LeCoultre Master Ultra Thin, model: Q1368480, automatic winding, stainless steel, 39MM diameter, ultra-thin body: 9.3mm thickness, easily fits into the sleeve of a suit, is the thinness at the top level of dress watches 2. The blue dial has an outstanding texture: The sunray blue dial changes its depth with the light, presenting a low-key and elegant look. It can create a perfect atmosphere when worn on business or at weddings 3. Classic Moon Phase Function: 6-point integrated moon phase window, precise display of moon phase waxing and waning, combining practicality and romantic aesthetics 4. Minimalist and clean dial: No redundant complex functions, simple lines, and less likely to cause aesthetic fatigue after long-term wearing