Strap for Nautilus 5811 White Gold / Blue

The bracelet is integrated into the case: there is no standard lug to which a traditional strap can be attached. The geometry of this Nautilus is designed to form a single unit with its bracelet. If you wish to change the strap, the only viable option is to have one built bespoke, directly on the watch, in the atelier.

I work by appointment only at <a href="/pages/casati-booking">Casati Milano</a>, at Via XX Settembre 15 in Milan. You bring the watch: I take measurements directly from the case, study the curve of the attachment point, and build the strap around that specific geometry. There are no useful shortcuts for a watch like this.

For a watch that combines a sporting character with a white gold case, I prefer alligator with a satin finish, in slate grey or midnight blue. It holds the double register of the model — neither too formal nor out of context. I have seen it worn this way and it works well.

A strap built from quality leather and hand-stitched will easily last five or six years with regular use. It depends greatly on how it is cared for: keep it away from water and let it breathe. Good leather ages with character — it takes on the shape of the wrist and improves over time.

The 5811 was introduced in 2021 as the successor to the 5711, but it is not a simple aesthetic revision. The white gold case changes the character of the piece compared to the steel of its predecessor: it is brighter, more formal in nature, while retaining the same octagonal porthole architecture designed by Gérald Genta. I have had the opportunity to study both at the bench — the difference is felt in the hand as well.