Hublot · Big Bang
Big Bang Unico
Ref. 421.NX.1170.RX
currentIn-house Unico (HUB1280)DocumentedLast reviewed Not yet reviewed
Component compatibility
What this reference is documented to have carried, and in what capacity. A service part is the manufacturer's own work; only a counterfeit classification is a finding against the watch.
Documented calibers
Whole production
The dial-side column wheel is visible through the skeletonised dial. Watch it index as the chronograph starts: it confirms the caliber without opening the watch.
Components
Whole production
Whole production
NX denotes titanium. Weight is the first check on a material claim and needs no equipment.