As second time zone watches are notoriously hard to read, Jacob & Co. decided to offer the widest, clearest most prominent display imaginable with Epic SF24 Tourbillon. The split-flap display is both a unique solution and the one offering the best readability. Once ubiquitous in train stations and airports, it relies on flipping printed blades in a precisely defined sequence. They pack a lot of written information in a tight space.

This information is two-fold. One set of flaps is printed with the 24 reference cities of the main 24 time zones on earth. The other bears the 24 digits that tell time. Read together, they deliver clear, immediate information to anyone working across two distant areas.

The Epic SF24 Tourbillon split-flap display module is unlike any other. It’s not located on top of the base movement. It’s a lateral and vertical extension. The sophisticated connection between the two is an exclusive Jacob & Co. development. It neatly separates two functional areas, while linking them mechanically through a special wheel, visible in an opening on the dial.