The Master Tourbillon Dual Time not only offers the reading of a second time zone but also redesigns the cage of the device designed by Abraham-Louis Breguet. The tourbillon regulator is crafted in titanium alloy, which emphasises its lightness and the effect of transparency and depth. Local time is displayed with central hands, while home time is shown on a 24-hour scale on an additional dial at 12 o'clock. The date is synchronised with the time zone, displayed on the flange with a central hand. To make room for the tourbillon, the date sphere makes a long jump between the 15th and 16th of each month, both located on either side of the tourbillon itself, thanks to a special mechanism developed and patented by Jaeger-LeCoultre. Crafted in pink gold, the case retains its 41.5 millimetre diameter, but the lugs and bezel have a slimmer, more streamlined shape. The movement is the manual 978B calibre.
