The brass Endurance 125 Time and Tide Clock features a combination quartz time and tide movement. The tide sector averages the Atlantic lunar tide cycle. The easy-to-read dial, maintenance-free finish and splash resistant construction make this generous size instrument one of our most popular. As part of the extensive Endurance Collection, this time and tide clock features an ultra-hard finish guaranteed to never tarnish. The patented Slide-n-Lock Mounting System eliminates the need for visible mounting screws and is easily removed for adjustments and battery replacement.