IWC · Da Vinci

Strap for Da Vinci Perpetual Rattrapante Yellow Gold / Silver / Italian / Bracelet

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
ReferenceIW9254-02 (aka: IW925402)
FamilyDa Vinci
MovementIWC caliber 79251 Hours, Minutes, Small Seconds | Date, Day, Month, Perpetual Calendar, Year Indicator | Chronograph, Rattrapante
CaseYellow Gold

Spring bar

Swiss Standard universal spring bars

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

The Da Vinci IW9254-02 (aka: IW925402), seen from the bench

The Da Vinci IW925402 is powered by the IWC 79251 caliber with perpetual calendar, rattrapante chronograph, and year indication functions. The watch features complications for hours, minutes, small seconds, date, day, month, and year. The lugs measure 19mm in width.

Frequently asked questions

What is the lug width of the IWC Da Vinci IW9254-02?

The lug width of the Da Vinci IW9254-02 is 19mm. This measurement refers to the internal distance between the two lugs of the case. It is essential to verify this with a digital calliper before selecting a compatible strap, to prevent lateral movement or accelerated wear.

Which strap material is most suitable for the IWC Da Vinci IW9254-02 in yellow gold?

Genuine alligator is the natural choice: the fine grain of the leather pairs perfectly with yellow gold and develops a noble patina over time. Alternatively, vegetable-tanned calf offers more pronounced texture and a technical character, whilst burgundy shell cordovan represents a sophisticated narrative choice for those seeking uniqueness.

How do you change the strap on an IWC Da Vinci IW9254-02?

The procedure requires extraction of the lug pins (spring bars). Use a dedicated tool—a spring bar remover—to push the pin downward and free the strap from the case. It is advisable to manipulate one lug at a time, keeping the watch stable. For safety, it is preferable to entrust this operation to a specialised craftsman.

Can a high-quality aftermarket strap be compatible with the Da Vinci IW9254-02?

Yes, provided it is manufactured with precision for 19mm lugs. Artisanal straps, crafted to exact specifications, guarantee perfect compatibility. It is essential to select manufacturers that certify millimetre-precise lug measurement and use first-grade leathers, as in the case of Casati Milano.

What is the average lifespan of a leather strap for the IWC Da Vinci IW9254-02?

A quality leather strap, with regular use (5–6 days per week), typically lasts 3–5 years before showing significant signs of wear. Longevity depends on factors including frequency of use, exposure to moisture, leather type (alligator resists longer than calf), and maintenance. An 18-month warranty is standard for artisanal straps of excellence.

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