Generate a hyper-realistic close-up product photography image of a high-end wristwatch displayed against a minimalist black background. Use a 100mm macro lens with an aperture of f/8 to ensure the entire watch is in sharp focus, eliminating any blur effects. Set the ISO to 100 and shutter speed to 1/125s to maintain clarity and avoid motion blur. The wristwatch should be positioned directly facing the camera to showcase its intricate features, including the dial, hands, and any embellishments, with polished metal and rich leather materials that convey luxury. Soft, natural light should illuminate the watch face, highlighting the texture and craftsmanship while creating a subtle play of light and shadow. In post-production, add subtle lens flare effects to create dynamic visual interest without overwhelming the image. Apply HDR techniques to enhance overall clarity and vibrancy, ensuring that every detail of the watch's elegance and precision is captured. The final output should be in ultra-detailed 8K resolution, showcasing the watch's sophistication and exclusivity.