The band carries enough blue to be recognized with the case partly under a sleeve. The smaller blue line around the dial then makes that color feel deliberate. It changes the RM 55's mood without concealing the open center or altering the dark shell that defines the model. Black is easier for a strict dark wardrobe; this version belongs with denim, light sportswear or other cool colors.
The RM 55 black strap is quieter beside dark clothes. This blue version suits informal outfits that can carry a cool wrist accent while keeping the familiar open RM 55 display.
Its RMUL2-style manual winding retains the hands-on character of the black version. The change is visual: blue gives the mechanical watch a more relaxed presence without replacing its dark tonneau outline.
Before dispatch, our QC team reviews blue strap tone, attachment fit and open dial alignment.