Strap for BR-X1 Tourbillon Chronograph RS17

The lug width is exactly 24mm. This measurement must be observed with precision: a strap narrower than 24mm (22-23mm) will create visible gaps between the lug and leather, whilst one wider (25-26mm) will produce lateral play and potential structural stress on the ceramic lugs.

Given the technical and minimalist architecture of the case, we recommend premium alligator in dark brown tones, or shell cordovan for gradual chromatic evolution through wear. For sport applications, a natural rubber strap with titanium deployante maintains technical authenticity. Choice depends on context: formal/business favours structured leather; sport prefers resilient rubber or NATO.

Use a spring bar tool (double-ended instrument) to remove the spring-loaded lugs. Position the tool in the lug slot, press inward to release the internal spring, and withdraw the lug. Repeat on the opposite side. Reverse the procedure to install the new strap. Exercise caution near the ceramic: whilst resistant, it is not immune to tool marks.

Yes, provided it is 24mm width. Milano Straps offers a curated collection of compatible 24mm straps in various materials and finishes, customisable in length, initials, and thread colour choice. Artisanal quality ensures correct visual proportions and structural behaviour suited to the 45mm case diameter.

A high-quality alligator or shell cordovan strap typically lasts 3–5 years of daily wear, depending on sunlight exposure, humidity, and cleaning frequency. Vegetable-tanned leather shows age visually faster but gains structural resilience over time. Milano Straps guarantees 18 months on bespoke Casati Milano straps, with revision and extension options beyond warranty period.