Strap for Big Pilot Antoine De Saint Exupery Platinum

The IW5004-19 is fitted with a standard lug width of 22mm. This measurement is purposefully engineered for this model to allow comfortable passage beneath pressurised flight suits. When purchasing an aftermarket strap, always verify that the spring bars are calibrated for 22mm: even a 1mm deviation creates abnormal tension on the case.

For the platinum variant, alligator leather remains the most coherent choice: its geometric grain complements the rigid engineering ethos of the case. Alternatively, vegetable-tanned Tuscan calfskin (particularly in aged tobacco tones) develops a grey patina that dialogues naturally with platinum over time. Saturated colours and NATO fabric are discouraged, as they visually overpower the instrument.

The Big Pilot employs standard spring bars. Position the watch on a soft surface, locate the small hole on each spring bar end, insert a thin tool (such as a dedicated spring bar tool) to compress the mechanism, and remove the old strap. Insert the new strap by aligning one bar first, then compress the spring mechanism on the second bar to lock it into the lug channel. Avoid unsuitable screwdrivers that risk scratching the case.

Absolutely. Quality artisanal aftermarket straps (such as Milano Straps) are fully compatible with the standard spring bar system of the IW5004-19. Construction quality often exceeds original straps in terms of finishing and leather selection. Always verify that spring bars are calibrated to 22mm and that manufacturing tolerances conform to specifications.

A genuine leather strap of quality (alligator, Tuscan calfskin, shell cordovan) typically lasts 3-5 years with daily wear, depending on the tanning method, body perspiration, and sun exposure. Vegetable tanning ages with elegance, developing a patina that enhances aesthetic value. Milano Straps include an 18-month warranty and can be reconditioned at the Casati Milano atelier to extend longevity.