Strap for Big Pilot Platinum / Black

The IWC Big Pilot IW5002-03 features a 20 mm lug width. This measurement is proportioned to the 46.20 mm case diameter and ensures visual balance. To verify compatibility, measure the distance between the two horizontal spring bar pins using a digital calliper.

For the platinum case and black dial of this timepiece, we recommend black alligator with fine grain, burgundy shell cordovan, or vegetable-tanned calf leather. Alligator offers formal elegance, cordovan introduces chromatic depth, whilst calf develops a noble patina over time. For sport-aviation use, black FKM rubber with a titanium deployant clasp represents functional authenticity.

Remove the existing strap by pushing the spring bar pins outward using a spring bar tool. Insert the new pins into the replacement strap and secure them to the case lugs until the click engages. Verify that the strap is centred and has no lateral movement. If preferred, Atelier Casati Milano offers the replacement service by appointment.

Yes, provided the strap is constructed for a 20 mm lug width. MilanoStraps artisanal straps are compatible with this reference. Ensure the lug width is snug between the lugs without lateral play, and that the strap is dimensioned correctly for your wrist. The 18-month warranty on all straps covers wear and manufacturing defects.

A quality leather strap (alligator, shell cordovan, vegetable-tanned calf) typically lasts 3–5 years with daily use and regular maintenance. Longevity depends on ambient humidity, frequency of wear, and cleaning practices. Vegetable-tanned straps develop a noble patina and may last longer. MilanoStraps guarantees 18 months on all artisanal straps, with the option of pin replacement by appointment.