IWC · Da Vinci
Strap for Da Vinci Tourbillon Rétrograde Chronograph Red Gold / Silver
Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
18mm
Lug width18 mm
Case diameter44 mm
ReferenceIW3931-01 (aka: IW393101)
FamilyDa Vinci
MovementIWC caliber 89900
Hours, Minutes, Small Seconds | Chronograph, Flyback, Column wheel | Tourbillon Escapement
CaseRed Gold
The Da Vinci IW3931-01 (aka: IW393101), seen from the bench
The IWC Da Vinci IW3931-01 is a manually wound chronograph from the Da Vinci collection, featuring the in-house caliber 89900 with tourbillon and flyback chronograph functions. The case is crafted in 18-carat red gold with a 44 mm diameter and 18 mm lug width. This timepiece combines complex mechanical complications with refined proportions, integrating the tourbillon for genuine chronometric precision rather than decoration.
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