Produced 2025–present. Nebula 40 Steel Blue, reference 1NEGS.U01A.S135D, is a 2025 Arnold & Son release with a 40 mm stainless steel case, skeleton dial with blue PVD flange and rhodium-plated appliques, integrated stainless-steel bracelet…
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Specifications, configurations, image gallery, market listings, lineage and notable appearances are part of the full reference.