The Quartz Movement with Date featuring ETA F6 high-torque Movement with 3 jewels and quick-set date function. This Movement is power-efficient with the expected battery life of up to 68 months. Our Caseback is designed with a battery hatch such that the user can change ones own battery in the field.
All Marathon Quartz Movements have an End-Of-Life indicator alerting the wearer up to 3 months in advance of when a battery replacement is required.