Laco Laco 500

The Laco 500 is an automatic chronograph movement produced by the German watchmaker Laco. It is based on the Sellita SW500-1, a widely used chronograph caliber that replicates the architecture of the ETA 7750. The movement is not manufactured in-house by Laco but sourced as an external caliber. It remains in production and is used in Laco's sport and pilot watch collections featuring chronograph complications.