Capture a close-up product shot of an automatic hand watch, showcasing its intricate movement mechanics through a transparent case back. The watch features a polished stainless steel body with a playful, colorful dial that includes whimsical hour markers. Set against a soft, textured studio backdrop, the image is illuminated by natural sunlight, creating a warm and inviting atmosphere. Use a shallow depth of field to blur the background, ensuring the watch remains the focal point, while subtle post-production color grading enhances the vibrancy of the scene.