Seikonaut Seiko Mod Watch with Rosegold Finish and Blue Rubber Strap
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Seikonaut – Rosegold Skeleton Mod Watch with Blue Strap (40mm)
This 40mm Seikonaut build blends polished rosegold tones with the cool contrast of a vibrant blue rubber strap, creating a luxury-sport mod with personality. The brushed rosegold case features the familiar integrated lug silhouette, while the fully open NH72 skeleton movement replaces the standard dial with raw, mechanical complexity.
Where most Seiko Nautilus open heart mods offer a small aperture into the movement, this build takes it further — offering a completely skeletonized design that showcases every detail of the mechanism beneath. It’s not just decorative; it’s the center of the design.
This is a clear upgrade from a traditional Seiko dial, offering both contrast and movement at a glance. The exposed gear train, balance wheel, and golden bridges give the piece serious presence without feeling overbuilt.
As with all true Seiko mod watches, it’s built with premium compatibility and long-term performance in mind — but this version brings a splash of color and elevated styling to set it apart.
Disclaimer: This is a custom-built watch assembled by us using genuine TMI (Time Module Inc.) movements, a subsidiary of Seiko Instruments Inc., part of Seiko Group Corporation.
This product is not an official Seiko watch and is not endorsed by or affiliated with Seiko Group Corporation or its subsidiaries.
