IWC · Da Vinci

Strap for Da Vinci Perpetual White Gold / Diamond / 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
ReferenceIW8153-12 (aka: IW815312)
FamilyDa Vinci
MovementIWC caliber 79261 hours, minutes, small seconds | date, day, month, perpetual calendar, year indicator | Chronograph
Year1991 - 2003
CaseWhite 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 IW8153-12 (aka: IW815312)

Selected for the 19 mm lug width

All 19 mm straps →

The Da Vinci IW8153-12 (aka: IW815312), seen from the bench

The IWC Da Vinci IW8153-12 is a 39mm white gold model featuring the automatic IWC 79261 calibre with perpetual calendar, annual indicator, chronograph function and date. The case diameter is 39mm and the lug width is precisely 19mm. This refined interpretation of Swiss watchmaking tradition combines harmonious proportions with minimalist dial design and technical precision in its construction.

Frequently asked questions

What is the lug width of the IWC Da Vinci IW8153-12?

The IWC Da Vinci IW8153-12 features a lug width of 19mm. This measurement is specific to this model and allows no variation: it results from the constructive proportions of the case and the attachment lug assembly. Accurate measurement means verifying the distance between the inner shoulders of the case, where the strap anchors via spring bars.

What strap material is recommended for the IWC Da Vinci IW8153-12?

Alligator in natural tones represents the most coherent choice with the formal elegance of white gold: the noble grain and natural patina complement the minimalist aesthetic. Vegetable-tanned calf offers a versatile alternative for less formal contexts, with capacity to develop authentic patina. Shell cordovan presents an intermediate choice with a more pronounced character. For sporty use, Mil-Spec textiles or FKM rubber maintain compatibility without compromising wearability.

How do you change the strap on an IWC Da Vinci watch?

Strap replacement occurs through extraction of the spring bars. Equip yourself with a spring bar tool, a small lever with curved ends. Insert the tip into the groove of one spring bar until decompressing the internal spring, then extract the bar. Repeat the operation on the other lug. The new strap is installed by inserting the bars through the passants and ensuring they are fully locked. With the Da Vinci IW8153-12, the slight inclination of the lug requires accuracy during initial installation.

Is an aftermarket strap compatible with the IWC Da Vinci IW8153-12?

Yes, provided the lug width is exactly 19mm. This is not a matter of approximation: 19mm means 19mm. Straps crafted by specialised artisans guarantee precise compatibility, tempered steel spring bars, and finishes coherent with the prestige of the movement. Avoid generic straps with approximate constructive tolerances, which cause structural misalignment or stress on the passants.

How long does a leather strap last on an IWC Da Vinci?

Durability depends on material and use. Premium-grade alligator with vegetable tanning guarantees 7–10 years of daily wear before replacement is required. Vegetable-tanned calf offers 5–7 years, with development of fascinating patina over time. Shell cordovan, being denser, can reach 10–12 years. Determining factors: sun exposure, ambient humidity, cleaning frequency, use of leather conditioners. Careful maintenance—periodic cleaning with a damp cloth, protection from chemical substances—significantly extends durability.

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