Strap for Da Vinci Perpetual Yellow Gold / Paved / English

The IWC Da Vinci IW3750-17 features a lug width of precisely 19 millimetres. This measurement must be taken from inside to inside, at the point where the strap contacts the lugs of the case. Straps of 18mm or 20mm are not compatible: precision is essential to avoid play or friction. We recommend verifying the measurement with a digital calliper before placing your order.

For the IW3750-17 in yellow gold, medium brown alligator is the classical choice: its irregular grain naturally dialogues with the precious metal without competing. Burgundy shell cordovan represents the refined alternative, developing a deep patina over time. Calf leather finished with vegetable tanning offers chromatic versatility and natural ageing. For informal contexts, red or royal blue nato completed with a yellow gold deployante creates controlled modernity.

Strap replacement requires two specific tools: a spring bar tool and the new 19mm compatible strap. Gently compress the strap to create space between the lug and case, then insert the tool tip into the narrow cavity that separates the case from the lugs. Push gently upward to release the tension spring. Remove the original strap, then insert the new strap by aligning the lugs with the case attachments and pressing until you feel the spring lock into place. If you lack experience, we recommend having this operation performed by an authorised specialist.

Yes, it is entirely possible to use aftermarket straps provided they are constructed for the 19mm lug width and the lugs are manufactured with precise tolerances. Artisanal straps in alligator, calf or shell cordovan offer quality comparable to or superior to many original straps, with the advantage of customisation in colour, stitching and fit. The IW3750-17 merits a strap constructed to artisanal standards, with attention to geometry and finishing.

The lifespan of a leather strap depends on frequency of wear, climatic conditions and the quality of the leather. A quality alligator strap, worn daily in temperate climates, can last 4–6 years before showing signs of failure. Shell cordovan is more resilient, often exceeding 7–8 years. Calf leather finished with vegetable tanning develops a protective patina that extends its service life. Prolonged exposure to sunlight, moisture and chlorine accelerates ageing. Our warranty covers manufacturing defects for 18 months.