Strap for Da Vinci Chronograph Stainless Steel / Black

The lug width of the IW3764-13 is 24 millimetres. This width, rare among 1980s chronographs, represents the balance point between the 43.10mm case diameter and visual harmony on the wrist. To verify compatibility, measure the distance between the case lugs themselves, not the external width of the strap attachment.

Authentic alligator in cognac brown tones is the ideal choice: the granular texture visually complements the chronograph subdials, and the leather ages developing a deep patina. Alternatively, shell cordovan for a cooler and more durable aesthetic, or vegetable-tanned calf leather for those preferring sustainability and natural wear.

The strap is changed by extracting the spring bars that connect the lugs to the case. Use a dedicated tool (spring bar tool) to compress the internal spring of the pin and gently slide the strap out. Insert the new spring bars into the aftermarket strap by aligning the holes, then compress and insert into the case. If unsure, consult an expert to avoid scratches.

Yes, provided the lug width is precisely 24mm. Most standard straps available online come in 20mm, 22mm or 26mm sizes. Artisanal quality straps are custom-made for this rare width, ensuring perfect compatibility and aesthetic coherence with the case.

A well-made alligator or cordovan strap lasts 4-6 years under normal daily wear conditions. Lifespan depends on frequency of wear, care (protection from moisture and extreme heat), and tanning method. A vegetable-tanned calf strap ages more visibly but remains functional for 3-5 years. The 18-month warranty offered by Casati Milano covers any manufacturing defects.