German made, manually wound, 36.4 mm/5.55 mm, 26 jewels (3 screwed gold chatons), 253 components, 42-hour power reserve, 2.5Hz (18,000 vph).
Functions: Hours and minutes, subsidiary seconds with stop seconds, second time zone (24-hour display) by means of revolving hand, Grossmann manual winder with pusher.
Special Features: Shock-resistant Grossmann balance with 4 inertia screws and 2 poising screws, Nivarox 1 balance spring with No. 80 Breguet terminal curve, Gustav Gerstenberger geometry. Hand setting override and start of movement with lateral pusher; second time zone (24-hour display) by means of exterior revolving hand, time zone display that can be corrected backwards and forwards at any time using the separate crown at 10 o’clock; space-saving modified Glashütte stopwork with backlash; adjustment with Grossmann micrometer screw on cantilevered balance cock; pillar movement with 2/3 plate and pillars made of untreated German silver; balance cock and escape-wheel cock hand-engraved; broad horizontal Glashütte ribbing; 3-band snailing on the ratchet wheel; raised gold chatons with pan-head screws; separately removable clutch winding mechanism; stop seconds for hand setting.