German made, manually wound, 30.6 mm/4.6 mm, 21,600 vph (3Hz), 188 parts 23 jewels, 5 screwed gold chatons, 55-hour power reserve. Decorated and assembled by hand. Plates and bridges made of untreated German silver. Balance cock engraved by hand. Lever escapement. Shock-resistant free sprung balance, precision beat adjustment system with lateral setscrew and whiplash spring. Hours and minutes.