Visualize a classic smartwatch in a realistic 3D rendering, set against a bright and vibrant office backdrop. The smartwatch, crafted in metallic shades, features a customizable watch face that displays fitness tracking information, such as calories burned and workout duration. The office setting includes a modern desk with a computer and stationery, providing context while keeping the smartwatch as the focal point. Use soft lighting to create a professional ambiance, highlighting the watch's sleek design and advanced features. The image should evoke a sense of innovation and style, appealing to tech-savvy professionals who value both aesthetics and functionality in their wearable devices.