IWC · Da Vinci
Strap for Da Vinci Perpetual Rattrapante Platinum / Diamond / Silver / English / Bracelet
Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Da Vinci IW9255-11 (aka: IW925511), seen from the bench
Frequently asked questions
What is the lug width of the IWC Da Vinci IW9255-11?
The lug width of the IWC Da Vinci IW9255-11 is 19 mm. This is the distance between the horizontal lugs of the case and is essential for ensuring strap compatibility. Measure precisely: position a ruler between the inner centres of both lugs. A strap must fit without play or forced tension.
Which type of strap is recommended for the Da Vinci in yellow gold?
For a yellow gold Da Vinci, alligator leather in cognac, dark brown or black enhances the metal's luminosity while creating elegant contrast. Vegetable-tanned calf offers a patina that ages nobly, whilst shell cordovan ensures formal lustre. All these materials work well with 19 mm lugs when constructed with perceived thickness between 4.5 and 5 mm.
How do you change the strap on an IWC Da Vinci IW9255-11?
The strap is changed by loosening the lug pins with a specific tool (pin remover or small brass hammer and punch). Remove the pin from the crown side, extract the old strap, align the new strap with the lugs and reinsert the pin from inside outward until a secure click is heard. If your watch features a deployante clasp, verify that the buckle pressure is correct after changing.
Is a 19 mm aftermarket strap from other brands compatible with the Da Vinci IW9255-11?
Yes, any strap with a 19 mm lug width is theoretically compatible. However, verify that the perceived thickness (typically 4.5–5 mm) does not create tension on the lugs. Artisanal quality straps guarantee finishing consistent with the IWC's build standard and extended durability, especially if crafted from vegetable-tanned leather or selected alligator.
How long does a leather strap last on a watch like the Da Vinci?
A high-quality leather strap (alligator, shell cordovan, vegetable-tanned calf) can last 3–5 years with moderate use and routine maintenance. Longevity depends on frequency of wear, exposure to moisture and heat, and the type of buckle or deployante clasp. An artisanal strap made from premium leathers often carries 18-24 month warranties and can be renewed (inner leather replacement, stitch repair), extending useful life.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
