IWC
Portugieser IW3714-21— lug 20mm

The IW3714-21 features a lug width of 20 millimetres. This dimension is standard for the model and ensures compatibility with all artisanal straps of equivalent width. To verify the measurement, use a digital calliper and measure the internal distance between the case lugs.

Mahogany alligator is the most harmonious choice with the 18-carat white gold case, as the reptile skin's natural texture enhances the case's luminosity without creating visual competition. Cognac shell cordovan represents a richer alternative, particularly valued by those seeking a strap that develops patina over time.

Remove the spring bars using a dedicated removal tool: insert the lever into the bar's groove and push gently to release the internal spring. Extract the old strap, position the new one by aligning the holes with the lugs, and repeat the operation on the opposite side. Verify that the spring bars click securely into place.

Yes, any strap featuring a 20-millimetre lug width is compatible. High-quality artisanal straps in alligator, shell cordovan, or vegetable-tanned leather do not compromise the watch's functionality and allow personalisation whilst maintaining IWC's original technical specifications.

A vegetable-tanned leather strap of quality, subject to moderate daily wear, has an average lifespan of 3 to 5 years. Shell cordovan extends to 7 years owing to superior fibre density. Durability depends on frequency of wear, ambient humidity, and preventive care—avoid direct water exposure and dry promptly if moisture-exposed.