The Rolex Precision Cal 1400 Movement is a high-quality mechanical (manual) movement designed for Rolex Precision watches. Made in Switzerland, this movement is known for its reliable performance and precision timing. With the Rolex brand name, you can trust in the craftsmanship and attention to detail that goes into each movement. This product ensures that your Rolex timepiece continues to function at its best, making it a valuable component for any watch enthusiast or collector. runs great