Seiko NH39A 388177 Yoke spring w/screwsSeiko NH39A 388177 Yoke spring with 2 screws. Sourced from a brad new Seiko NH39A movement. The Yoke spring is an authentic part from a watch movement by Seiko.

Whether you’re restoring a cherished heirloom or customizing your timepiece

7750 2577 Day jumper

Elevate your watch’s mechanism and let every moment count

the Seiko Day star ensures you do so with style and accuracy

a testament to the brand's commitment to precision engineering and timeless craftsmanship

Elevate your timekeeping and join the legacy of excellence that only Rolex can deliver

Hamilton 912 0425 Click w/spring with 1 screw

making it an ideal choice for those who appreciate both form and function

Universal Geneve 106 0245 Cannon pinion

This essential part

Screw your expectations with Girard-Perregaux perfection

Spring into precision with the Longines 19A 1452 Winding lever spring