The exterior of the case engine-turned with a spiral design, the front reserved with a shield-shaped cartouche engraved with the Cyrillic initials Ya.K., struck with 56 standard (14 karat); the white enamel face with Roman chapters, with chronometer and moon phase dial, the movement visible under the glass crystal with white enamel border with the days of the week in Russian and days of the month in black numerals. With Latin letters LG stamped on the suspension ring. 3 1/4 ix 2 1/8 in. (8 x 5.5 cm)