Strap for Defy El Primero 21 Titanium / Skeleton / Porto Cervo

The lug width is 23 millimetres. This measurement represents the internal distance between the strap attachment points and is specific to this model. It is not interchangeable with 22mm or 24mm widths, as this would result in excessive play or friction on the case.

An alligator leather with medium grain in anthracite grey or deep blue amplifies the sport-elegant character. Vegetable-tanned calf in light tones offers sophisticated contrast as it develops patina. For versatility, a NATO strap in dense weave, grey or black, allows quick changes whilst maintaining authenticity. Shell cordovan is discouraged, as its glossy texture conflicts with the case's matte finish.

Use a spring bar tool: insert the tip into the lateral hole of the lug, gently lift the internal spring to release the pin, then remove the old strap. Align the new strap with the holes and release the spring bar with care. Verify that the strap is secure on both sides before wearing the watch.

Yes, artisanal 23mm straps are available from Milano Straps, both online and through the Casati Milano atelier. Online straps are ready to ship and customisable in material, colour, initials and stitching thread. The atelier offers direct consultation and bespoke creations with personal leather selection.

A high-quality leather strap, whether vegetable-tanned or alligator, typically lasts 3-5 years under normal conditions. Longevity depends on exposure to moisture, perspiration and frequency of wear. Rubber or technical fabric straps generally last 4-7 years. Proper maintenance—periodic cleaning and drying after perspiration contact—significantly extends strap life.