Strap for Da Vinci Perpetual Rattrapante Yellow Gold / Diamond / Silver / French / Bracelet

The lug width of the IWC Da Vinci IW9255-04 is 19 millimetres. This measurement is standard across all case variants of the model. A compatible strap must measure exactly 19mm in width to fit correctly into the case attachments without lateral play or structural tension.

For a dress watch in yellow gold such as the Da Vinci IW9255-04, alligator leather remains the reference choice: it offers understated elegance, uniform natural grain, and a patina that evolves over time. Alternatively, vegetable-tanned calf or shell cordovan are excellent options for those seeking versatility and durability. The strap texture and colour should complement the yellow gold without creating overly marked contrasts.

Strap replacement is performed by removing the lugs (pins) that connect the strap to the case. Using a dedicated lug extractor tool or a small flat screwdriver, extract the pins from the lateral holes in the case. Once the lugs are freed from the old strap, they are inserted into the new strap (which must feature identical lug attachment holes at 19mm spacing) and reinserted into the case. The operation should be carried out on a clean surface, and professional assistance from a qualified watchmaker is advisable if uncertain.

Yes, an aftermarket strap of quality may be used provided it features a 19mm lug width and attachments built to standard specifications. Artisanal straps crafted from premium leathers—alligator, calf, shell cordovan—are frequently preferable to the stock strap, as they permit chromatic personalisation, superior craftsmanship, and the ability to adjust length to your wrist.

Leather strap longevity depends upon the material selected and intensity of use. High-quality alligator or shell cordovan, with proper maintenance (avoiding excessive moisture, moderate sun exposure), offers a lifespan of 3-5 years under daily wear. Vegetable-tanned calf ages more rapidly but develops a compelling patina. Thread fibre and edge finishing significantly influence overall durability. Artisanal straps carrying structural warranty (such as those from Casati Milano, with 18-month guarantee) provide assurance and restoration options.