Strap for Da Vinci Perpetual Stainless Steel / Black / English / Bracelet

The lug width of the IWC Da Vinci IW3750-34 is 19 millimetres. This measurement, taken from the inner edge of one spring bar to the inner edge of the other, is a distinctive feature of this model and requires specifically dimensioned straps. It is essential to verify that the strap has been manufactured according to IWC's construction tolerances to ensure perfect fit to the case lugs.

Alligator is the most coherent choice with the Da Vinci's constructive character. Its fine texture and ability to develop an aged patina confer sobriety and refinement. For those seeking a solution more conscious of ageing, shell cordovan is extraordinary: its construction density guarantees exceptional durability and a deep patina over time. Vegetable-tanned calf leather offers a more informal and lighter alternative, suitable for less formal daily wear.

Strap replacement is performed by removing the spring bars that connect the strap to the case lugs. Using an appropriate tool (available from specialised ateliers), gentle pressure is applied to retract the spring bar, freeing the old strap. The new strap is inserted by aligning the holes with the spring bars and allowing them to snap back into position. It is advisable to consult a professional to avoid damage to the case or lugs.

Yes, but careful selection is required. Aftermarket 19-millimetre straps manufactured by specialised artisans (such as those available on milanostraps.it) guarantee certified compatibility and construction quality. It is essential to verify that the strap has been specifically manufactured for IWC tolerances and that the spring bar geometry is suitable for the Da Vinci case. Direct consultation with the atelier ensures informed choices.

The lifespan of a leather strap depends on the tanning type and chosen material. Alligator with correct vegetable tanning maintains structural integrity for 4-6 years of daily use. Shell cordovan, thanks to its intrinsic density, can easily exceed 7-10 years. Calf leather has shorter lifespan (2-4 years) as the hide is softer and subject to accelerated wear. Periodic maintenance—hygiene, application of light oils, protection from humidity—significantly extends the strap's life. Casati Milano provides an 18-month warranty and assists with post-sale maintenance.