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IWC · Da Vinci

Strap for IWC Da Vinci IW3931-01

The 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
18 mm strapsAll IWC
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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
Year2017
CaseRed Gold

Spring bar

Swiss Standard universal spring bars

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

Standard spring bar · length 18 mm · Ø 1.8 mm double flange · industry standard, no brand part number

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Da Vinci Tourbillon Rétrograde Chronograph Red Gold / Silver — watch

Straps for the Da Vinci IW3931-01

Selected for the 18 mm lug width

All 18 mm straps →

What I'm asked about the IWC Da Vinci IW3931-01

What strap size does the IWC Da Vinci IW3931-01 take?

The IWC Da Vinci IW3931-01 needs 18 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the IWC Da Vinci IW3931-01 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the IWC Da Vinci IW3931-01?

Yes, in 18 mm leather. On a 44 mm chronograph I like box calf: it holds its shape and carries a substantial case.

Which strap do you recommend for the IWC Da Vinci IW3931-01?

A 18 mm box calf. You'll find it ready in the 18 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

For changing the strap

Classic Strap and Bracelet Removal Tooltwo-tip spring bar tool→Milano Straps Premium Swiss Standard Watch Bucklestang buckle, steel or PVD→Leather Conditioner Milano Strapsnourishes and protects the strap→Casati Milano Rectangular Epsom Leather Travel Case — Brownfor the watch and spare 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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only

Bespoke straps for IWC, in the atelier or by video call: casatimilano.com