IWC · Big Pilot

Strap for IWC Big Pilot IW3297-02

The Big Pilot 43 Spitfire Bronze takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

  • 4.8 out of 5 · 269 reviews
  • Ships in 1–3 working days
  • Worldwide shipping
  • 30-day returns
  • 12-month warranty on manufacturing defects
  • Hand-stitched in Milan

Lug width

21mm
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Lug width21 mm
Case diameter43 mm
ReferenceIW3297-02 (aka: IW329702)
FamilyBig Pilot
MovementIWC caliber 82100 Hours, Minutes, Seconds
Year2021
CaseTitanium, Bronze

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 21 mm · Ø 1.8 mm double flange

Big Pilot 43 Spitfire Bronze — watch

Your watch with our straps

Big Pilot IW3297-02 with Grand Cavalier Leather Strap Orange
Big Pilot IW3297-02 with Vintage Brown Calfskin Strap — Natural Patina
Big Pilot IW3297-02 with Brown Italian Leather Strap

Calf, Orange

Grand Cavalier Leather Strap Orange

€120

★ 4.9 · 12

1 / 57

Real photos of the strap and the case. No generated images.

What length do I need?

Measure your wrist with a tailor's tape or a piece of string, comfortably snug.

Wrist circumferenceLength (long side / short side)
15.0–16.4 cm120 / 70 mm
16.5–17.8 cm125 / 75 mm
17.9–19.0 cm130 / 80 mm
19.1–20.3 cm135 / 85 mm
20.4–21.6 cm140 / 85 mm
21.7–22.9 cm145 / 90 mm

The ready-to-wear strap is 115 × 75 mm. For a smaller or larger wrist I make it in the right length: order your length.

What I'm asked about the IWC Big Pilot IW3297-02

What strap size does the IWC Big Pilot IW3297-02 take?

The IWC Big Pilot IW3297-02 needs 21 mm between the lugs. It's the size I've been fitting on it for years.

Can the strap on the IWC Big Pilot IW3297-02 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 Big Pilot IW3297-02?

Yes, in 21 mm leather. On a 43 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the IWC Big Pilot IW3297-02?

A 21 mm calf strap, for every day. You'll find it ready in the 21 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

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

Updated on · by Antonio Zichichi