The brass porthole quartz tide & time clock measures 9"Dia x 2.5"D. This quartz tide & time clock comes in a solid brass tarnish proof case with beveled glass. This beautiful instrument will accurately predict the tide cycles in your area & show time. It will add a definite nautical touch to whatever room it is placed in and is a must have for those who appreciate high quality nautical decor. It makes a great gift, impressive decoration & will be admired by all those who love the sea.