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IWC · Ingenieur

Strap for IWC Ingenieur IW3812-01

The Ingenieur Chronograph Sport Edition “76th Members’ Meeting at Goodwood” takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

22mm
22 mm strapsAll IWC
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Lug width22 mm
Case diameter44 mm
ReferenceIW3812-01 (aka: IW381201)
FamilyIngenieur
MovementIWC caliber 69380 Hours, Minutes, Small seconds | Date, Day | Chronograph, Column wheel
Year2018
CaseTitanium

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 22 mm · Ø 1.8 mm double flange · industry standard, no brand part number

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Ingenieur Chronograph Sport Edition “76th Members’ Meeting at Goodwood” — watch

What I'm asked about the IWC Ingenieur IW3812-01

What strap size does the IWC Ingenieur IW3812-01 take?

The IWC Ingenieur IW3812-01 needs 22 mm between the lugs, usually 18 or 20 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the IWC Ingenieur IW3812-01 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 Ingenieur IW3812-01?

Yes, in 22 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 Ingenieur IW3812-01?

A 22 mm box calf. You'll find it ready in the 22 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