Tudor, Black Bay Series, model: M79470-0003, with a diameter of 39mm, features a matte brushed 24-hour scale fixed bezel, an arched sapphire crystal, a matte black dial, and a striking yellow snowflake GMT hand. It is equipped with dual time zone and calendar functions, and is powered by the self-produced MT5652. It complies with chronometer standards and is water-resistant to 200m with bright luminescent light. It is retro and versatile, a complete set for 2023.