Circular, the hinged front cover enamelled with Imperial double-headed eagle beneath a blue champlevé enamelled ribbon, opening to reveal a white enamel dial, with Roman numerals,blued spade hands, the back cover decorated with engine turned motif, opening to reveal an inscription in Russian 'Pavel Buhre supplier to the Court of his Highness No.37459', marked inside front cover, back cover and cuvette, also with Swiss control mark, in a fitted red leather case applied with the Imperial double-headed eagle and stamped inside in Russian 'Pavel Buhre' beneath the Imperial warrant, silver case signed 84(875), gilt lever movement, compensation balance.