The blue version suits the RM 52 selection when the skull design should carry a distinct color signature. The clear-transparent alternative is the more neutral presentation. The white strap supports either decision by keeping the wrist-side contrast clear.
The blue transparent presentation changes the skull's first impression from neutral exposure to a cooler, more graphic object. In the gallery's front views, the skull geometry remains the anchor while the openworked dial supplies the layered detail behind it. The white strap repeats the contrast at the wrist without introducing another dark visual block.
For QC, request one centered front view where the skull presentation and hands can be judged together, one angled view showing the blue transparent surfaces, and close images of both white-strap attachments. The openworked dial should remain legible behind the skull, and the manual tourbillon presentation should be visible as presented in this configuration.
The clear-transparent RM 52 is the useful nearby choice when the same skull, openworked and white-strap direction should appear without the blue color signature. This blue version keeps color visible around the skull rather than letting the transparent presentation read almost colorless.