Seikonaut – Black PVD Skeleton Watch with Silver Dial & Blue Strap (40mm)

This 40mm Seikonaut pairs stealthy black PVD finishing with bright silver dial components and a deep blue rubber strap, delivering a premium mod that’s sporty, sharp, and full of movement.

Powered by the Seiko NH72 skeleton movement, this build exposes the entire mechanical architecture — giving you a bold, openworked display that goes far beyond the partial window of a Seiko Nautilus open heart. You don’t just get a glimpse of the balance wheel — you get the full story.

The polished silver hands and markers stand out crisply against the golden skeletonized movement, offering both readability and visual depth. Compared to a traditional Seiko dial, this configuration feels alive — rotating, ticking, and layered in detail.

The black PVD case is scratch-resistant and understated, while the blue strap adds a pop of contrast that keeps the watch from feeling too aggressive. It’s a balanced, highly wearable entry in the upper tier of Seiko mod watches — combining mechanical expression with confident style.

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.