This vintage Swiss men's chronograph Tilius Landeron 51 movement is a mechanical (manual) timepiece suitable for repair or as a spare part. With the brand being Landeron and compatibility with the Tilius model, this movement offers a unique and sought-after piece for those looking to restore or customise their vintage watches. Perfect for watch enthusiasts and collectors looking for authentic and high-quality movements to enhance their collection. very clean movement winds but does not run. for spares or repairs only.