Strap for De Ville Co-Axial 35 Chronograph Red Gold Diamond / MOP

The lug width of this model is exactly 20mm. This dimension is critical for compatibility with aftermarket straps and is measured as the internal distance between the spring bars. An incorrectly sized strap will not fit properly to the case and compromises both aesthetics and mechanical functionality.

For 18-karat rose gold, the ideal materials are: alligator in cognac or burgundy tones for uncompromising elegance; vegetable-tanned calf leather for a patina that ages in parallel with the gold; shell cordovan for structural rigidity and brilliance. Technically, a grey NATO or black FKM rubber offer functional versatility. Avoid saturated or pastel colors that compete visually with the warmth of the gold.

The De Ville uses standard 20mm spring bars. To remove the strap: position the watch on a soft cushion with the case facing downward, extract the spring bar using a spring bar tool, then gently separate the previous strap. Install the new strap by reinserting the spring bar into the lug slots. If you are not confident, entrust the task to Casati Milano's service for a professional result.

Yes, all straps with 20mm lug width are compatible. Online you will find a wide selection of straps ready for shipment in various materials (alligator, calf, NATO, rubber). The Casati Milano atelier also offers bespoke straps made to measure, with personal selection of leathers and an 18-month guarantee.

Durability depends on the material and usage: a quality artisanal alligator or calf leather resists 3-5 years with ordinary care (protection from water, storage away from extreme humidity). Shell cordovan can last over 5 years. Deterioration occurs due to mechanical stress (prolonged sun exposure, acidic sweat, twisting), not defects. An artisanal guarantee of 18 months is the reliability standard; beyond this, longevity depends on the owner's maintenance.