
Realized by using a pocket watch reference 5301 with calibre 9720 of IWC. "Flying" tourbillon, containing 5 main parts made of polished steel and brass, on ball bearing. Monometal balance with Breguet-overcoil. Three-quarter-plate with gold chatons. Power reserve indication without differential at the movement side. This design is still the base of the "Stiftentourbillon" in IWC's own watchmaking shool. Satinated stainless steel case with crystal caseback.

Realized by using a pocket watch reference 5404 with calibre 9820 of IWC. "Flying" tourbillon made of steel and brass on ball bearing. Monometal balance with Breguet-overcoil based from calibre IWC 9520. Movement engraved by master engraver Wolfgang Sigwart. Polished solid gold case with inner crystal caseback.

Based on calibre 67 of IWC. "Semi-flying" tourbillon on ball bearing with upper bearing of the balance at the original balance cock. Carriage made of polished steel and brass. Monometal balance with "free-sprung" hairspring base on calibre IWC 9720. Stopsecond with little pusher. Antique solid gold case.
Titanium carriage with a diameter of 12mm on ball bearing. Pallet fork and escape wheel "antimagnetic". Monometal balance with Breguet-overcoil. 96 parts with a weight of 0,296 g. To be assembled modular into the movement.

A simple regular tourbillon has been mounted onto an additional plate to turn in a second direction. Carriage made of polished steel and brass on ball bearing. Monometal balance with Breguet-overcoil based on calibre IWC 9520. Handmade movement with 8 days power reserve. All bearings made of ruby. Solid silver "Regulator"-dial handengraved by master engraver Wolfgang Sigwart. Blue steel hands. The clock stands on brass pillars and a wooden base underneath a crystal dome. Winding and setting by key.