Hublot Spirit of Big Bang Sapphire Black 641.JX.0120.RT 42 mm

Product DescriptionThe Hublot Spirit of Big Bang Sapphire 42mm epitomizes avant‑garde Swiss watchmaking and material innovation. Its fully polished sapphire crystal case and bezel reveal the skeletonized dial and high‑frequency chronograph mechanism, powered by the HUB4700 automatic movement, delivering precision, transparency, and a striking architectural presence that defines modern luxury.Technical SpecificationsSpecificationDetailsReference641.JX.0120.RTCase Size42 mmCase MaterialPolished Sapphire CrystalBezelSapphire Crystal with 6 H‑shaped Titanium ScrewsDialTransparent Skeleton Sapphire DialMovementHUB4700 Self‑winding Skeleton Chronograph MovementPower ReserveApprox. 50 hoursCrystalSapphire with Anti‑Reflective TreatmentStrapTransparent or Black Structured Rubber (variant‑dependent)ClaspTitanium Deployant BuckleFunctionsHours, Minutes, Small Seconds, ChronographWater Resistance50 m / 5 ATMLimited EditionYes (typically limited edition of ~200 pieces)OriginSwiss Made