IWC · Da Vinci

Strap for Da Vinci Perpetual Black Ceramic / White Gold / White / English

Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

19mm
Lug width19 mm
Case diameter39 mm
ReferenceIW3755-09 (aka: IW375509)
FamilyDa Vinci
MovementIWC caliber 79261 hours, minutes, small seconds | date, day, month, perpetual calendar, year indicator | Chronograph
Year1986 - 1995
CaseCeramic, White Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Da Vinci IW3755-09 (aka: IW375509)

Selected for the 19 mm lug width

All 19 mm straps →

The Da Vinci IW3755-09 (aka: IW375509), seen from the bench

The IW375509 Da Vinci is equipped with the IWC 79261 caliber featuring chronograph and perpetual calendar functions with day, date, month and year indications. The watch has complications for hours, minutes, small seconds and chronograph integrated into the automatic movement. The lugs measure 19mm in width for the strap.

Frequently asked questions

What is the exact lug width of the IWC Da Vinci IW3755-09?

The lug width of the IWC Da Vinci IW3755-09 is 19mm. This dimension represents the physical distance between the internal pins that anchor the strap to the case. Accurate measurement is performed by positioning the tape measure perpendicular to the two pins without twisting. A strap of different width would not seat correctly, compromising both the aesthetics and the wearing comfort.

Which strap pairs best with the Da Vinci IW3755-09 in white ceramic and white gold?

Alligator represents the most coherent choice: the subtle grain texture creates a natural chromatic dialogue with the ceramic's friability. Alternatively, calf leather with fine grain and oil treatments offers a compromise between softness and durability, with significant patina potential over time. For versatility, a natural silk NATO allows chromatic rotation whilst maintaining aesthetic coherence.

How do you change the strap on the IW3755-09?

To change the strap, use a dedicated tool to extract the steel pins connecting the strap to the case. Proceed with caution, protecting the case from scratches. Once the pins are removed, detach the old strap and insert the new one in the same position, ensuring the holes align correctly before reinserting the pins. If you lack experience, consult a professional watchmaker.

Is a 19mm aftermarket strap compatible with the Da Vinci IW3755-09?

Yes, any strap with a 19mm lug width is compatible with the Da Vinci IW3755-09, provided that the internal hole dimensions are standard and the leather does not exhibit anomalous thickness that would prevent correct insertion between the lugs. Milanostraps supplies 19mm straps specifically calibrated for this geometry, eliminating margins of error and ensuring structural compatibility.

What is the average lifespan of an alligator leather strap for this watch?

A quality alligator strap, subjected to ordinary use, has an average lifespan of 3-5 years before replacement is required. Longevity depends on usage intensity, environmental conditions and maintenance: avoid prolonged exposure to extreme humidity and accelerated perspiration, occasionally apply conditioning treatments based on natural wax. With proper care, the leather develops a patina that testifies to conscious ageing without compromising structural functionality.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only