Strap for Portuguese Perpetual Calendar Tourbillon Armor Gold / Blue / Boutique Edition

The lug width (misura ansa) of the IWC Portugieser IW5045-04 is 22mm. This measurement indicates the internal distance between the two spring bar attachment points where the strap is mounted. Verify this by measuring the space between the lugs without including the strap itself.

For the IW5045-04 in rose gold, we recommend alligator in midnight blue or deep burgundy for timeless elegance, or vegetable-tanned calf leather for visible ageing. Rubber is ideal for sports use. Avoid light tones that would create visual imbalance with the deep rose gold case.

Change the strap using a spring bar remover tool (typically supplied with quality straps). Apply gentle pressure to the spring bar end to disengage it from the hole in the case lug, then remove the old strap and insert the new one by reversing the procedure. Avoid forcing to prevent case damage.

Yes, provided they are compatible with the 22mm lug width. Artisanal straps of quality are fully compatible and often superior to original straps in materials and customisation options. Ensure the lugs (passanti) match the correct width and that the buckle is proportionate to the 45mm case.

A quality leather strap lasts 3-5 years with daily use, depending on the tanning method and care. Vegetable-tanned leather ages more visibly but typically lasts longer. Alligator has similar durability but offers better moisture resistance. Regular maintenance (cleaning, drying, occasional rest) can extend lifespan to 7 years.