The Zenith Defy Extreme ref: 06.9100.9004/21.I001 features a combination of yellow gold and stainless steel in its construction. This automatic chronograph watch has a 45mm case and showcases a skeleton dial. It is powered by the Zenith caliber El Primero 9004 movement, which includes a chronometer certification and a power reserve indicator. Released in 2023, this timepiece exemplifies precision and functionality in its design.