The Omega Constellation 39mm automatic men's watch 131.23.39.20.58.001 BC is a master chronometer with a Master Co-Axial automatic movement. This timepiece is suited for formal wear and professional settings. Its classic design complements tailored suits and refined ensembles. The alligator leather strap offers a sophisticated accent, making it appropriate for significant occasions. Key details Brand: Omega Type: Automatic watch Colour: Yellow Gold Material: 18K yellow gold, stainless steel, sapphire glass, alligator leather Line: Constellation