Strap for Da Vinci Tourbillon Quattro Stagioni / Italian / Bracelet

The IWC Da Vinci IW9267-06 features a 19mm lug width. This measurement refers to the distance between the inner shoulders of the case, the point where the strap attaches. Verifying this dimension with a digital calliper before purchase ensures perfect compatibility and eliminates any lateral play.

For a yellow gold 39mm Da Vinci, dark brown or jet black alligator is the most appropriate choice. The fine grain of crocodile leather naturally complements the brushed finish of the case. Shell cordovan with vegetable tanning represents an alternative for those seeking an evolving patina over time. We advise against NATO straps and coarse textures, which do not respect the aesthetic gravity of the watch.

The process is straightforward: use a spring bar tool (dedicated instrument with interchangeable flat tips) or a small flat-head screwdriver. Position the watch with the case face down, locate the elastic spring pin securing the strap to the lug, and gently push the pin outward using the spring bar tool. The pin will extract completely. Remove the old strap and insert the new one, ensuring the pin seats firmly in both lug holes. Repeat for the opposite end.

Yes, provided the strap is specifically constructed for the 19mm lug width. IWC employs this standard on this model. Always verify that the strap is supplied with the correct spring bars and that the width is precisely 19mm, not approximated to 18.5mm or 19.5mm. A bespoke artisanal strap permits customisation of lengths, thickness, and construction details tailored to your specific wrist.

Durability depends on leather quality, usage patterns, and maintenance. Alligator or shell cordovan with vegetable tanning typically lasts 3–5 years with moderate daily wear (4–5 days weekly). Standard calf leather lasts 2–3 years. The flexion zone where the lug bends against the wrist experiences the most stress. An artisanal strap in fine leather ages gracefully, acquiring patina. We recommend storing the watch in a safe when unworn for extended periods, and having a professional leatherworker periodically inspect stitching and spring bars.