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    ⚙ CONFIGURATOR
    Build Your Own Visually

    SKX013 Diver 38 Black Ultra Thin Edition — side profile showing 10.86mm ultra-thin case thickness

    Ultra Thin Edition
    Seikonaut Bracelet 20/16mm [TITANIUM] - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts

    Seikonaut
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    Build Your Own Visually

  • SKX013 Diver 38 Black Ultra Thin Edition — side profile showing 10.86mm ultra-thin case thickness

    Ultra Thin Edition
  • Seikonaut Bracelet 20/16mm [TITANIUM] - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts

    Seikonaut

    • Decorated NH Rotors — Côtes de Genève, GS & FPJ Finishing

    The rotor is the part of an automatic movement you actually see through an exhibition caseback — the weight that swings as you wear the watch — and the bridge is the plate beside it. This collection decorates both — Côtes de Genève, GS 9SA5 and FPJ Diamond finishing in silver, gold tones, gunmetal and blue — machined for the Seiko NH family from the NH34 GMT through NH35, NH36 and NH38. The finish is PVD coating, part of the surface rather than a layer of paint. Pair a rotor and bridge on a solid movement; for skeletonised NH70-series movements, a rotor alone is the right pick — the FAQ explains why.

    Narrow it down:  All rotorsSilverGoldGunmetalBlueBlack

    NH Movement Rotor - Côtes de Genève III - Black - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts
    NH Movement Rotor - Côtes de Genève III - Black - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts
    NH Movement Rotor - Côtes de Genève III - Black - - - - Lucius Atelier - Swiss Quality Seiko Watch Mod Parts
    NH Movement Rotor - Côtes de Genève III - Black $45 SGD

    Rotor & Bridge Questions, Answered

    Fit, finish, and the skeleton question — what to check before you decorate a movement.

    Will these rotors and bridges fit my NH movement?

    Yes — they're made for the Seiko NH family: NH34 GMT, NH35, NH36 and NH38, and mechanically they also fit the skeletonised NH70-series. Fit is mechanical; whether a bridge LOOKS right on a skeleton movement is a different question — see below.

    Can I put a decorated bridge on a skeletonised NH70, NH71 or NH72?

    It fits, but we don't recommend it. The bridge sits over exactly the section the skeleton movement opens up — you'd be covering the openwork you paid for. On a skeletonised movement the right decorative part is a rotor on its own; save the rotor-plus-bridge pairing for solid NH movements.

    Is the finish paint or a coating?

    PVD coating — the colour is bonded into the surface, not painted on top. That's what keeps it crisp under a caseback, but it also means it can't be stripped back to bare metal: abrasives don't reveal steel, they destroy the finish. Pick the colour you want to keep.

    Rotor or bridge — which should I choose?

    The rotor is the moving piece and the one your eye goes to first — if you're decorating one part, start there. The bridge dresses the plate beside it and completes the look on a solid movement. Both are visible only through an exhibition (sapphire) caseback, so pair them with one.