The Omega Seamaster reference 522.21.42.20.04.001 features a stainless steel case complemented by Moonshine Gold accents. This model has a 42mm white dial and is powered by the automatic winding Omega caliber 8800. Introduced in 2023, it includes a date function and is certified as a chronometer. The watch utilizes a co-axial escapement for enhanced precision and reliability.