Seiko NH39A 363184 Ratchet Sliding Wheel SpringSeiko NH39A 363184 Ratchet Sliding Wheel Spring. Sourced from a brad new Seiko NH39A movement. The Ratchet Sliding Wheel Spring is an authentic part from a watch movement by Seiko.

it's the cornerstone of your watch's heartbeat

Whether you’re restoring a cherished heirloom or maintaining your everyday companion

this tiny marvel is your ticket to watchmaking nirvana

and the relentless pursuit of perfection

This vital component ensures the seamless operation of your timepiece

With its impeccable engineering and attention to detail

a masterpiece of engineering by Hamilton

making every repair a testament to quality

this main plate exemplifies the pinnacle of precision engineering

660/661 0201 Center Wheel: The Heart of Precision

With Longines' dedication to quality and craftsmanship

This escape wheel is designed to elevate the performance of your timepiece