Strap for Portugieser Chrono-Automatic Stainless Steel / Watches of Switzerland

The lug width of the IWC Portugieser IW3714-62 is 20 millimetres, measured centre-to-centre between the fixed attachment pins. This is a precise manufacturing specification for this model: any compatible strap must respect this exact parameter to ensure proper seating within the lugs without play or binding.

The optimal strap depends on intended usage. For formal wear and collecting, alligator in black with a brushed stainless deployante clasp emphasises the chronograph's constructive severity. For daily wear, vegetable-tanned leather in cognac tone provides aesthetic balance and durability. For sport contexts, vulcanised rubber delivers superior waterproofing and grip performance.

Strap replacement requires a small pin removal tool (1.5–2mm diameter extractor). Position the watch with the dial facing downward, locate the pin joining the lug to the strap, and gently push with the extractor until the pin emerges. Repeat on both sides, then seat the new strap by reversing the procedure. Perform this operation on a soft surface to prevent case damage.

Yes, any strap with a 20-millimetre lug width is compatible with the IWC Portugieser IW3714-62. High-quality aftermarket straps in alligator, vegetable-tanned leather, or rubber match the manufacturing standards of the IWC factory strap, with personalisation options (initials, thread colour, custom lengths) often unavailable from Schaffhausen.

A high-quality leather strap (alligator or vegetable-tanned calf) averages 3–5 years with daily wear, depending on UV exposure, perspiration, and cleaning frequency. Alligator ages more slowly than calf due to superior fibre density. Vulcanised rubber, under constant UV exposure, degrades within 4–6 years. Casati Milano provides an 18-month warranty on all custom-made straps.