Strap for Big Pilot Stainless Steel / Green / Zegg & Cerlati

The lug width of the IWC Big Pilot IW5004-07 is 22mm. This width is compatible with all standard and bespoke straps from Milano Straps. To verify manually, measure the distance between the lug pins of the case using a digital caliper.

For the Big Pilot, we recommend Nile crocodile with vegetable tanning, which balances elegance and aviation heritage, or shell cordovan for superior durability. Calf leather with fine grain offers chromatic versatility, whilst a cotton NATO is ideal for sports use. Choice depends on wearing context and personal aesthetic preference.

The strap is changed using a dedicated tool (spring bar tool) to remove the springs holding the strap at the lugs. Position the tool in the small lateral groove of the lug, press inward to release the spring, then extract the strap. Repeat on the other side. For installation, align the holes of the new strap to the lugs and reinsert the springs with the same tool.

Yes, any strap with a 22mm lug width is compatible with the Big Pilot IW5004-07. Milano Straps offers online a selection of straps in crocodile, shell cordovan, calf and rubber ready for dispatch. Always verify lug width before purchase to guarantee full compatibility.

The lifespan of a leather strap depends on intensity of use, tanning method and material. Vegetable-tanned crocodile typically lasts 3–5 years with regular wear. Shell cordovan resists 7–10 years thanks to denser fibre. Periodic maintenance (gentle cleaning and conditioning with natural oils) significantly extends strap life.