Strap for Big Bang Unico 45 King Gold / Ceramic / Black

No. The bracelet is integrated into the case using Hublot's proprietary attachment system: a standard strap has nothing to anchor to. This is not a matter of missing lug measurements — the case architecture simply does not feature conventional lugs. That is precisely why I build every strap directly on the watch, here in the atelier.

I work on this model exclusively through <a href="/pages/casati-booking">Casati Milano</a>, by appointment only, at Via XX Settembre 15 in Milan. I bring the watch to the bench, study the case geometry with my eyes and hands, and build the strap around those forms. There are no templates — every piece starts from scratch.

The Big Bang has a distinctly sporting character, with a case that combines titanium, ceramic, red gold and aluminium — hard, visually dense materials. For this base I prefer a matte-finish Mississippi alligator: it holds its ground without competing with the watch. A leather that is too formal would simply not belong here.

With quality leather and solid construction, I count on at least five to seven years of regular use. The key is care: limited direct sunlight, no prolonged exposure to water, a little seasonal conditioning. Good leather does not deteriorate — it transforms, takes on the shape of the wrist, changes tone. That is one of the things I appreciate most about this craft.

The combination of materials — titanium, ceramic, red gold, aluminium — produces surfaces with entirely different hardnesses and finishes. Each area of the case responds differently to contact with leather. When I build a strap for this watch, I have to account for all of that to avoid abrasion and ensure the fit remains stable over time.