IWC · Da Vinci

Strap for Da Vinci Perpetual Black Ceramic / Yellow Gold / White / French

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
ReferenceIW3755-04 (aka: 3755-04, IW375504)
FamilyDa Vinci
MovementIWC caliber 79261 hours, minutes, small seconds | date, day, month, perpetual calendar, year indicator | Chronograph
Year1986 - 1995
CaseCeramic, Yellow 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 IW3755-04 (aka: 3755-04, IW375504)

Selected for the 19 mm lug width

All 19 mm straps →

The Da Vinci IW3755-04 (aka: 3755-04, IW375504), seen from the bench

The IWC Da Vinci IW3755-04 is an automatic chronograph with a 39 mm white ceramic case contrasted by 18-karat yellow gold. The in-house IWC 79261 movement features a vertical chronograph, central date window, month and year indicator, and perpetual calendar function until 2100. With a 19 mm lug width, this timepiece combines technical materials for scratch resistance with classical proportions inspired by Kurt Klaus's original design from the 1980s.

Frequently asked questions

What is the lug width of the IWC Da Vinci IW3755-04?

The IWC Da Vinci IW3755-04 features a lug width of 19 mm. This measurement represents the interior distance between the two metal lugs that attach the strap to the case. Accurate measurement is critical: use a digital calliper positioned perpendicular to the lugs on the caseback for a precise reading. An incorrect lug width poses the risk of the watch falling off your wrist.

Which strap is recommended for the IWC Da Vinci IW3755-04?

For the Da Vinci IW3755-04, alligator leather with vegetable tanning represents the optimal choice: the natural scale structure amplifies the sophistication of the yellow gold and ceramic case. Alternatively, vegetable-tanned grey-blue or black calf leather offers aesthetic coherence and exceptional durability. For formal evening wear, a black silk NATO maintains chromatic consistency with the gold. Butadiene rubber remains a practical option for humid environments, though it cannot compete in elegance with structured leathers.

How do I change the strap on my IWC Da Vinci IW3755-04?

To change the strap: 1) Obtain a spring bar tool or a small flat-head screwdriver. 2) Position the watch on a soft surface. 3) Insert the tool tip under the metal lug from one side and gently push toward the centre until the lug releases from the case. 4) Repeat on the opposite side. 5) Align the replacement strap's lugs with the case holes and press until you hear a click. Caution: do not force to avoid damaging the yellow gold lugs.

Can I use an aftermarket strap on my IWC Da Vinci IW3755-04?

Yes, provided the strap is certified for 19 mm lug width. Aftermarket straps from quality manufacturers—such as Milanostraps or established European niche brands—are fully compatible and often feature superior leathers compared to factory IWC straps. Always verify the technical specifications from the maker before purchasing. A bespoke leather strap with vegetable tanning can significantly enhance the overall aesthetic perception of your watch.

How long does a natural leather strap last on a watch like the Da Vinci?

A high-quality leather strap—alligator, calf, shell cordovan with vegetable tanning—typically lasts 4–7 years with daily wear. Longevity depends on environmental factors (humidity, heat, UV exposure), frequency of use, and maintenance. Vegetable-tanned leathers develop a natural patina and age elegantly. To extend lifespan, avoid prolonged exposure to fresh water, protect from direct sunlight, and apply conditioning balm every 12–18 months. Rubber or synthetic fabric straps last longer (8–10 years) but do not acquire personal patina character.

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