The Omega Constellation reference 123.10.38.21.52.001 features a stainless steel case with a diameter of 38mm. It is powered by the automatic winding Omega caliber 8500, known for its co-axial escapement. This model includes a date function and is certified as a chronometer. The watch showcases a silver dial, providing a classic aesthetic. The combination of these elements makes it a reliable choice for those seeking precision and functionality in their timepiece.