The pinnacle of aesthetics: the most dazzling star under IWC - the Ingenieur Moon Phase Expert with a new replica series, model IW544805, featuring a transparent case back. The case is made of 316L stainless steel, with a smooth and polished finish. The small seconds sub-dial is located at the 6 o'clock position and includes a hacking function. The watch is equipped with solid bar Roman numeral hour markers, with the moon phase positioned identically to the original version. We can observe that the leaf-shaped hands indicate the hours and minutes separately. The double-sided anti-reflective domed sapphire crystal adds to its elegance. The strap is made of Italian calf leather. The movement is an in-house developed automatic winding mechanical movement, known for its stability and precision. This is the most remarkable transparent watch under IWC, suitable for various business occasions, combining simplicity and sophistication without losing elegance. We welcome watch enthusiasts from all walks of life to appreciate it.