The H. M. Kala Sunwatch Pocket Sundial is a highly detailed and beautifully made solid brass pocket sundial. Its small size and quality construction make it one of the most charming sundials ever made. Precision crafted in Austria using traditional materials and based on ancient knowledge, this sundial will be a reliable guide and timepiece on your journeys around the world. This high quality pocket sundial is based on the universal equinoctial ring sundial, used by ancient sailors and mathematicians. This particular type of sundial also determines True North and is aligned with the axis of the Earth. A contemporary design of a historic timepiece, the H. M. Kala Pocket Sundial can also be used as a sun compass, a model of the world, or worn as a piece of jewelry. The small sundial is 2 3/8 inches (6 cm) in diameter, 1/8 inch (3.2 mm) thick, 2 inches (5.1 cm) deep, and the sundial weighs 1.4 ounces (40 grams). The H. M. Kala Solid Brass Sunwatch Pocket Sundial comes complete with contemporary gift packaging, and a detailed 14-page instruction manual.