The Zenith El Primero ref: 18.2118.400/27.C498 features a 42mm case crafted from rose gold. This automatic chronograph is powered by the El Primero 400 movement, known for its precision. The watch showcases a white dial, providing a clean backdrop for its chronograph functions. With its combination of materials and technical specifications, this timepiece exemplifies Zenith's commitment to watchmaking excellence.