A Legacy of Precision. A Future in Flight.
High-precision mechanical instruments, designed for the most critical environments.
Swiss Precision Since 1853
SATHOM perpetuates THOMMEN's excellence in every detail, on the ground and in the air.
Our mission is to deliver the highest quality mechanical instruments for aviation, maintaining the standards of Swiss precision engineering.
Innovation
Continuous advancement in mechanical precision
Why Choose SATHOM
Over 170 years of Swiss precision engineering excellence
Swiss Precision
Uncompromising accuracy in every mechanical instrument we manufacture
Aerospace Certified
EN 9100:2018 certified ensuring highest quality standards
Heritage Excellence
Continuing THOMMEN's legacy of innovation since 1853
Global Support
Worldwide service network for comprehensive customer support
Our Services
Comprehensive solutions for aviation instrumentation excellence
Instrument Maintenance
Professional maintenance and calibration services for mechanical flight instruments ensuring optimal performance and compliance.
Learn MoreTechnical Support
Expert technical support and consulting services for aviation instrumentation systems and regulatory compliance.
Learn MoreWarranty Services
Comprehensive warranty coverage and repair services backed by our commitment to quality and customer satisfaction.
Learn MoreA Rich History of Innovation
THOMMENS Uhrenfabrik founded in Waldenburg, Switzerland as a wrist watch manufacturer.
First aircraft chronograph designed for the Swiss Air Force, entering the aviation sector.
Expanded into comprehensive aviation instrumentation for the Swiss Government.
Launch of the pocket altimeter type TX for alpinists.
SATHOM SARL acquires THOMMEN's mechanical instruments division.
Waldenburg, 15th February 2021 - SATHOM SARL received EN9100:2018 certification, equivalent to AS9100D and JISQ 9100:2016 standards.
Waldenburg, 10th February 2024 - SATHOM SARL received its new EN9100:2018 - AS9100D certificate renewal.
Part 145 - Sathom newly UK CAA approved.
Industries We Serve
Trusted by aviation professionals across diverse sectors for precision instrumentation solutions
Commercial Aviation
Precision instrumentation for commercial aircraft ensuring safety and reliability.
Military Aviation
Specialized instruments designed to meet the demanding requirements of military aircraft.
Helicopter Operations
Custom solutions for the unique instrumentation needs of rotary wing aircraft.
Training Aircraft
Reliable instruments for flight schools and training aircraft worldwide.
Certifications
Our commitment to quality is validated by our multiple certifications, ensuring the highest standards in aerospace manufacturing and maintenance.