IWC · Da Vinci

Strap for Da Vinci Perpetual Stainless Steel / Black / German

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
ReferenceIW3750-28 (aka: IW375028)
FamilyDa Vinci
MovementIWC caliber 79261 Hours, Minutes, Small Seconds | Date, Day, Month, Perpetual Calendar, Year Indicator | Chronograph
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Da Vinci IW3750-28 (aka: IW375028), seen from the bench

The IWC Da Vinci IW3750-28 is a perpetual chronograph featuring the IWC caliber 79261 mechanical movement with perpetual calendar, year, month and day indicators. The stainless steel 316L case measures 39 mm in diameter with sapphire crystals front and back. Lug width is 19 mm. This model represents the Da Vinci collection's philosophy of refined aesthetics and Swiss watchmaking precision.

Frequently asked questions

What is the exact lug width of the IWC Da Vinci IW3750-28?

The lug width of the IWC Da Vinci IW3750-28 is 19 millimetres. This dimension is specific to this particular reference and differs from other IWC models sharing the same case diameter. To verify the measurement, measure the distance between the two metal pins that insert into the case lugs.

Which strap material pairs best with the Da Vinci IW3750-28?

Genuine alligator is the most harmonious choice, as its natural grain and shield pattern amplify the elegance of the sculpted dial. Vegetable-tanned calf is excellent for those seeking a patina that evolves over time. Shell cordovan remains the connoisseur's selection for structural density and characteristic lustre.

How is the strap changed on the IW3750-28?

The strap is changed via removable spring bars that connect the lugs to the case. Use a spring bar tool to carefully withdraw the pins from the lugs, then detach the old strap and insert the new one, ensuring the pins fully engage the case eyes. If you lack experience, consult an expert such as atelier Casati Milano.

Is an aftermarket 19mm strap compatible with the Da Vinci IW3750-28?

Yes, any artisanal strap constructed specifically for the 19-millimetre lug width is compatible. It is essential to verify that the strap is made for this exact width and not for approximate universal sizes. Straps from milanostraps.it are manufactured to this precise specification.

What is the service life of a leather strap for this timepiece?

A high-quality artisanal leather strap lasts between 3 and 5 years with daily wear, depending on material choice and maintenance. Alligator and shell cordovan tend to last longer due to structural density. Vegetable-tanned leather develops a natural patina and remains serviceable beyond 5 years if preserved from excessive moisture. Casati Milano offers an 18-month guarantee on all artisanal straps.

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