The Sinn EZM 13.1 is designed as instruments for professional use. Sinn’s diving chronograph watches satisfy extremely high requirements when it comes to reliability and performance. The EZM 13.1 H-Link was tested and certified with the technical standard for diving watches. This ensures that the EZM 13.1 H-Link is qualified for professional use as a diver watch to the highest levels of mechanical stability and durability against external influences. The EZM 13.1 is equipped with a technology package consisting of Magnetic Field Protection, Ar-Dehumidifying Technology and Temperature Resistance Technology.

Sinn Spezialuhren is a German watch brand that specializes in producing durable watches in a wide variety of styles and functions for both professional and civilian use. Over the years, Sinn has introduced collections that are dedicated and certified for a professional use. The Sinn 13.1 is a Diving Chronograph Watch that was designed to be a blend of functionality and comfortability.