Complete set, Hublot, BIG BANG, model: 421.NX.0500.VR.BER21 Satin and polished titanium 44mm case: Crafted from 44mm satin-polished titanium, with a Berluti grey Venezia leather bezel, the leather is embossed with hour markers and the words "SWISS MADE", presenting a unique texture. Dial: Skeletonized mechanical dial, with a grey base of leather texture. At the 3 o 'clock position on the right side, there is a date + 30-minute chronograph sub-dial. The overall style is tough yet retains the warm texture of leather goods. Strap: Equipped with a Berluti grey leather strap, featuring a titanium folding clasp. It can also be paired with a rubber strap from the same series to suit various wearing scenarios..