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IWC · Da Vinci

Strap for IWC Da Vinci IW3751-03

The Da Vinci Perpetual Rattrapante Platinum / Silver / English takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

19mm
19 mm strapsAll IWC
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Lug width19 mm
Case diameter39 mm
ReferenceIW3751-03 (aka: 3751-03, IW375103)
FamilyDa Vinci
MovementIWC caliber 79251 Hours, Minutes, Small seconds | Date, Day, Month, Perpetual calendar, Year indicator | Chronograph, Rattrapante
Year1995 - 1999
CasePlatinum

Spring bar

Swiss Standard universal spring bars

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

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Straps for the Da Vinci IW3751-03

Selected for the 19 mm lug width

All 19 mm straps →

What I'm asked about the IWC Da Vinci IW3751-03

What strap size does the IWC Da Vinci IW3751-03 take?

The IWC Da Vinci IW3751-03 needs 19 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 IW3751-03 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 IW3751-03?

Yes, in 19 mm leather. On a 39 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 IW3751-03?

A 19 mm box calf. You'll find it ready in the 19 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

The Da Vinci IW3751-03, seen from the bench

The IWC Da Vinci IW3751-03 is a platinum chronograph with a 39mm case housing the automatic IWC 79251 calibre. This movement combines a split-seconds chronograph with perpetual calendar, year indicator and date display. The 19mm lug width accommodates the case-to-strap proportion established by IWC designers. Platinum construction resists oxidation and develops natural patina over time, while the screw-down caseback enables periodic servicing.

Frequently asked questions

What strap is most suitable for the IWC Da Vinci IW3751-03 in platinum?

Alligator leather is the classic and recommended pairing for the Da Vinci IW3751-03, thanks to its natural geometric texture that dialogues perfectly with the watch's precision engineering. Alternatively, vegetable-tanned calf leather or an FKM rubber strap represent excellent choices respectively for those seeking chromatic evolution over time or sporty daily-wear functionality.

Can I use an aftermarket strap on an IWC Da Vinci IW3751-03?

Yes, provided the strap is manufactured for 19mm lug width. High-quality aftermarket straps, such as those crafted by artisanal leather specialists, are perfectly compatible and often offer greater aesthetic variety compared to official IWC options. Ensure that the strap is produced by experienced craftspeople to guarantee construction quality and durability over time.

How long does a leather strap last on a watch like the Da Vinci IW3751-03?

The lifespan of a leather strap depends on the material (alligator, calf, shell cordovan) and usage pattern (daily or occasional wear). A quality artisanal alligator strap typically lasts 3-5 years in daily use, whilst a shell cordovan strap can last 5-7 years if maintained regularly. Vegetable-tanned leather develops patina over time but remains functional beyond 5 years with proper care.

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