The Girard-Perregaux Minute Repeater Tri-Axial Tourbillon reference 99830-21-000-BA6A was introduced at SIHH 2018. Crafted in titanium so as to chime with greater intensity, this 48 mm-diameter model powered by the manual-winding calibre GP09560-0001 houses two of the most challenging horological complications: a minute repeater and a tri-axial tourbillon. Hours and minutes are displayed on two sapphire discs, allowing for a full view of the movement from the dial side.