Strap for Heritage Tourbillon Skeleton

The lug width of the H. Moser & Cie Heritage 8803-0401 is 20mm. This measurement is determined by the proportions of the 46mm case and the integrated bracelet geometry. To verify compatibility with an aftermarket strap, measure the internal space of the lug from end to end—it must correspond precisely to 20mm to ensure a secure fit without play and effortless strap changes.

For the Heritage in rose gold, we recommend a strap in alligator in dark brown or black tones, which enhances the warmth of the metal and the sobriety of the design. Alternatively, a vegetable-tanned calf leather offers evolving colour patina over time, perfect for those who appreciate natural aging. For a casual approach without compromise, a black or grey rubber strap maintains the minimalist balance of the piece. Our 20mm straps are available in all these materials, ready for dispatch and customisable to your aesthetic preferences.

Strap changing is a straightforward operation requiring a dedicated tool (spring bar tool). Position the watch so the lug is visible, insert the flat tip of the tool into the small lateral hole of the lug to compress the spring, and the old strap will detach. Repeat on the other side. For the new 20mm strap, align the holes and push until you hear the spring click back into place. If you lack experience, entrust the task to a specialised workshop to prevent scratches on the rose gold case.

Yes, absolutely. The 8803-0401 is fully compatible with aftermarket straps featuring a 20mm lug width. Our artisanal straps, crafted by Casati Milano, are designed for this measurement and available in leather (alligator, calf), NATO and rubber. The use of high-quality aftermarket straps does not compromise the watch warranty and is common practice amongst luxury watch owners who wish to vary aesthetics according to occasion and season.

The lifespan of a leather strap depends on usage intensity and care. A vegetable-tanned calf strap, worn daily, maintains structural integrity for 3–5 years. Alligator, being more robust, can last 5–7 years. Rubber offers even greater longevity, up to 10 years with regular use and periodic cleaning. To extend useful life, refrain from wearing the same leather strap for more than 5–6 consecutive days, allowing the material to dry completely between wears. Our artisanal straps are realised with leather of maximum quality to guarantee durability superior to market average.