One Minute Tourbillon, Spring detent escapement stressed by pressure, movement plates of German-Silver, 17 jewels, fusee and chain, power reserve to 30 hours, with up and down,
with a minute wheel cock, Glashuetter gold screwed compensation balance, blued balance spring with a terminal curve by Gustav Gerstenberger diagram, spring detent with a "Laterne" and stressed by pressure, golden escape wheel.

Hunter case made of silver, 925, altered open face case, previously A. Lange & Sons
chronometer-case, middle band increased in height, new hinges, fly spring, lock spring and push-pin spring, all manufactured, front cover and bezels renewed, inner dome replaced by a bezel and crystal, 39 case components.