Kala Sunwatch Brass Pocket Sundial The H. M. Kala Sunwatch Pocket Sundial is a highly detailed and beautifully made solid brass pocket sundial. 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 H. M. Kala Solid Brass Sunwatch Pocket Sundial comes complete with contemporary gift packaging, and a detailed 14-page instruction manual. 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).