The Master Ultra Thin Moon embodies refined elegance in a 39mm steel case, a mere 9.3mm in profile. Its copper-toned, grained dial presents a study in balanced symmetry, with the moon phase display subtly positioned at 6 o'clock. Elongated, trapezoidal indices complement the iconic Dauphine hands, their alternating brushed and polished facets creating a captivating dance of light. A brown alligator strap, secured with a stainless steel folding buckle, offers effortless interchangeability. The reverse reveals the meticulously finished in-house caliber 925, designed and assembled under the same roof at the Grande Maison, showcasing beveling, Côtes de Genève, and blued screws.