Strap for Constellation Co-Axial 31 Red Gold / Snow / Diamond Supernova

The lug width is exactly 20mm. This is the internal distance between the two lugs of the case, measured from wall to wall. It is essential to verify this measurement before purchasing a strap, as even a small discrepancy would create structural tension or excessive play when changing the strap.

Alligator is the most natural choice for continuity of prestige and aesthetic grain with rose gold. Alternatively, vegetable-tanned calf offers softness and harmonious aging. For versatile daily wear, a premium canvas NATO or high-end FKM rubber guarantee practicality without compromise.

The change requires removal of the lugs using specific tools (spring bar removal tool) or, for certain models, recourse to specialized craftsmen. If your Constellation has special integrated attachments, we recommend consulting Casati Milano service to ensure precision and case protection.

Light brown (cognac or honey) in alligator creates warm harmony without competing with the case. Black with ivory stitching offers contemporary sobriety, while deep burgundy generates sophisticated tonal relationship. Soft cognac in calf remains the foundation for formal occasions. Avoid overly strong contrasts that would compete rather than support the rose gold.

A quality leather strap (alligator or vegetable-tanned calf) typically lasts 3-7 years, depending on use, care, and exposure to moisture. Casati Milano artisanal straps include 18-month warranty and can be regenerated or replaced. Natural leather patinas and ages like the rose gold of the case, creating uniqueness over time.