Strap for Defy El Primero 21 Black Ceramic / Skeleton / Rubber

The lug width is 23mm. This measurement is non-standard and must be verified by measuring the distance between the two attachment lugs. For the Defy, it is essential to use straps calibrated precisely to 23mm to ensure correct fitment without play.

Alligator leather with vegetable tanning in black or deep blue is the ideal pairing: it emphasises the modernity of the ceramic without adding frivolity. Valid alternatives include quality calf with gummed finishes, shell cordovan for those desiring evolution over time, or ballistic nylon for a sporty mood.

Use a spring bar remover to release the attachment pins from the case lugs. Gently extract the pin from the lower hole, remove the previous strap and insert the new one, verifying that the pin diameter is compatible with the 23mm attachments. Ensure the strap exhibits no defects that could cause unintended rotation.

Yes, aftermarket straps of quality may be used provided they are specifically calibrated for the 23mm lug width. Milano Straps offers a selection of Italian artisanal straps compatible with this model, in addition to the possibility of commissioning a bespoke strap from the Casati Milano atelier by appointment.

A strap in prestige-grade leather, with vegetable tanning, maintains structural integrity for 4-6 years under normal use conditions. Longevity depends on exposure to moisture, aggressive detergents and frequency of wear. With proper maintenance (gentle cleaning, protection from driving rain), the leather develops a patina that improves aesthetically over time.