Greubel Forsey Invention Piece 3

The third Invention Piece highlighting the Tourbillon 24 Secondes mechanism. Features a large 24-hour sub-dial dominating the dial side with hours indicated by a red triangle and minutes by a smaller blue triangle. Small seconds at 5 o'clock with power reserve at 2 o'clock opposite the tourbillon at 8 o'clock. Four gold dial plates are engraved with a personal message in French from Robert Greubel and Stephen Forsey to the owner.