hi Flavien,
thank you for your reply ,
yes i have all this seetings settings up , but is still very blurry.
here my seetings,
sorry for the color i am on a laptop ouside with the sun 
i push the quality at 4.0 is not changing anything.
i setup also for “high quality normal”.
let me know if you need some other information.
I believe that while Lumen is well-suited for rendering organic materials and matte surfaces due to its rapid calculation of reflections and global illumination, it does not yet meet the needs of luxury watch design. In our specific context, where we deal with highly reflective materials like polished metal, the precision of rendering is paramount. Lumen prioritizes speed and uses algorithms that quickly approximate light and reflections, which is generally effective but insufficient for applications requiring high accuracy. This approach lacks the necessary precision for materials like polished metal, where each reflection significantly impacts the overall visual quality. Conversely, Raytracing provides much higher precision in calculating reflections and lighting, which is crucial for achieving the realistic and detailed effects essential in high-end product design. Therefore, I think that for our specific requirements, where precision is more critical than speed, Raytracing remains indispensable. At this point, it appears that Lumen is not capable of matching Raytracing’s level of detail and accuracy for reflective materials.
Have a nice day.
Daniel