Sunburst Seiko NH35 – Premium Decorative Movement Factory

Seiko NH35 Automatic Movement with Radiant Sunburst Finishing

Drawing inspiration from fine decorative horology, we upgraded the classic Seiko NH35 caliber with high-end surface finishing. Specifically, watchmakers wide respect this automatic engine for its everyday reliability and structural durability. However, to meet modern demand for open-caseback aesthetics, we applied premium mechanical engraving across the base caliber. Consequently, the refined movement combines proven Japanese performance with sophisticated visual depth on the wrist.

Radial Guilloché and Perlage Detailing

Where standard calibers leave movement bridges plain, we engrave a radiant sunburst pattern directly onto the mainplate and bridges. Therefore, precise mechanical rays extend outward from the center, creating dynamic light reflections under ambient light. In fact, we achieve this visual enhancement without increasing total movement thickness, maintaining complete compatibility with standard watch cases. Simultaneously, circular graining (perlage), blue-polished screws, and a signed rotor elevate the overall finishing standard.

Core Caliber Specifications and Testing

Meanwhile, beneath these decorative enhancements lies the original 24-jewel architecture operating at 21,600 vibrations per hour (3 Hz). Additionally, the movement features hacking seconds and manual hand-winding capabilities alongside a reliable 41-hour power reserve. Consequently, watch brands can easily integrate this engine into dive, field, or dress watch collections. Turn the watch over, and our in-house quality control team inspects every caliber for accuracy, tolerances, and mainspring power reserve.

Bespoke Supply and Private Label Production

Ultimately, as a specialized watch manufacturing facility, we offer full-scope OEM and ODM customization options, including custom logo execution, modified dial colorways, or specialized strap pairing for your brand.