Strap for Big Pilot's Watch Le Petit Prince

The lug width of the IWC Big Pilot IW5010-02 is 22 mm, measured centre-to-centre between the upper and lower lugs. This width is specific to this model and requires bespoke-made straps. To verify the measurement, use a ruler or digital calliper positioned perpendicularly across the metal lugs on the case.

Given the aviation heritage and generous case proportions, a dark brown alligator strap, grained calf in ochre tones, or a grey-slate NATO fabric canvas are excellent choices. For formal settings, shell cordovan develops remarkable patina and creates superior chromatic harmony with the off-white dial. Choice depends on intended use: flight simulation suits NATO; formal contexts suit structured leather.

Strap change requires a dedicated spring bar tool to compress the retaining springs. Position the tool in the lateral grooves of the lug, compress gently to release the spring, extract the old strap and align the new one with the holes. If uncertain, consult an authorised service centre or Casati Milano atelier for professional replacement without case scratching risk.

Yes, provided the lug width is precisely 22 mm. Quality aftermarket straps manufactured for this specification fit the case lugs perfectly without lateral tension. Always verify lug width specifications before purchase. Milano Straps offers a curated collection of 22 mm straps tested for Big Pilot compatibility, customisable with warranty.

Durability depends on material type and usage patterns. Quality calf, rotated regularly with at least one other strap, provides 3–5 years of daily wear. Shell cordovan with vegetable tanning can exceed 7 years, developing fascinating patina. Critical factors: avoid prolonged moisture exposure, prevent direct continuous sunlight, use gentle cleaners. Casati Milano atelier offers 18-month warranty on all bespoke-made straps.