The Girard-Perregaux Laureato Tourbillon continues the legacy of the Laureato collection, first introduced in 1975 by Milanese link architect Adolfo Natalini. link While the collection has evolved, including being relaunched in 2016, its key elements remain—an octagonal bezel that flows into an integrated bracelet, the signature Clous link de Paris pattern on the dial, and elegant proportions.

Inside the GMT is Bell & Ross' modified ETA 2893-2, which they dub the BR-CAL.303. The automatic movement link is modular and derives from the link highly popular non-GMT ETA 2892-2, and like that movement, features a hacking seconds mechanism, 42-hour power reserve, and frequency link of 28,800 vph – all alongside an independently operated GMT hand. Like the GMT it powers, it's an easily serviceable, no-nonsense caliber able to keep time efficiently without much flourish.