




Aquaterro is a distributor of Marathon Watch Company, a Canadian manufacturer known for producing high-precision, military-specification timepieces. Established in 1939 and headquartered in Ontario, Marathon has a long-standing history with the armed forces of Canada and the United States, supplying wristwatches and timing instruments that meet strict government and defence standards.
Marathon watches are manufactured in Switzerland, combining Swiss horological craftsmanship with North American military requirements. Each model is designed to withstand the most extreme environments and operational demands, adhering to MIL-SPEC standards for durability, accuracy, and legibility.
Marathon’s design philosophy emphasises function over form. The watches are built primarily as professional instruments, suitable for use by divers, pilots, law enforcement and military personnel, but they are also valued by civilians seeking stylish yet dependable field watches.

The company’s product lineup includes mechanical, quartz and automatic movements on models such as the GSAR (Government Search and Rescue), TSAR (Tritium Search and Rescue), and Navigator, all of which are widely used in professional and tactical contexts. Many of these watches employ tritium gas tube illumination, providing consistent, maintenance-free visibility in low-light conditions for decades. Construction materials typically include surgical-grade stainless steel or high-impact composite cases, paired with sapphire crystals and high-end movements for long-term reliability.
Today, Marathon remains one of the few watchmakers producing timepieces to active military specifications, maintaining a niche position within both the tactical and horological markets. The company’s continued focus on precision engineering and operational reliability has earned it a reputation as a specialist in professional-grade timekeeping instruments.
The company’s product lineup includes mechanical, quartz and automatic movements on models such as the GSAR (Government Search and Rescue), TSAR (Tritium Search and Rescue), and Navigator, all of which are widely used in professional and tactical contexts. Many of these watches employ tritium gas tube illumination, providing consistent, maintenance-free visibility in low-light conditions for decades. Construction materials typically include surgical-grade stainless steel or high-impact composite cases, paired with sapphire crystals and high-end movements for long-term reliability.
Today, Marathon remains one of the few watchmakers producing timepieces to active military specifications, maintaining a niche position within both the tactical and horological markets. The company’s continued focus on precision engineering and operational reliability has earned it a reputation as a specialist in professional-grade timekeeping instruments.





