Girard-Perregaux Minute Repeater Tri-Axial Tourbillon

The Girard-Perregaux Minute Repeater Tri-Axial Tourbillon, reference 99830-21-000-BA6A, has a 48 mm titanium case measuring 21.24 mm thick. A minute repeater and a tri-axial tourbillon are visible on the dial side alongside the gongs and hammers. Manual-winding calibre GP09560-0001 contains 54 jewels and offers a power reserve of 64 hours. The movement runs at 21,600 vibrations per hour (3 Hz), with the mechanism visible beneath sapphire front glass. A black alligator leather strap has a titanium triple folding clasp. Rated to 30 metres, the case has an anti-reflective sapphire box crystal as its display back.