Outer case, inner case, and champlevé dial: silver and blued steel hands; Movement: gilded brass, steel, and diamond endstone
Dimensions
Diameter of outer case: 2 in. (5.1 cm);
Diameter of inner case: 1 3/4 in. (4.4 cm);
Diameter of back plate: 1 3/8 in. (3.5 cm);
Depth of whole object: 1 1/16 in. (2.7 cm)