Strap for Portofino Day & Night 34 Red Gold - Diamond / Silver

The lug width of the IWC Portofino IW6598-02 is 16 millimetres. This non-standard measurement requires careful selection of compatible straps. To verify, use a digital calliper measuring from the inner shoulder of one lug to the other, perpendicular to the case's longitudinal axis.

For the rose gold Portofino IW6598-02, authentic alligator is recommended—its natural grain and structural integrity pair ideally with the warmth and sophistication of the precious metal. Vegetable-tanned calf leather is an excellent alternative for those preferring more pronounced patina development. Vintage-weave canvas NATO straps suit a sportier interpretation whilst maintaining appropriate respect for the precious case.

You can use a spring bar removal tool to disconnect the elastic rings (spring bars) linking the strap to the case lugs. Position the watch on a soft surface, insert the tool into the lug opening, gently compress the elastic ring, and pull the strap outward. The operation requires steady hands but not excessive force. If unfamiliar with the procedure, consult a professional watchmaker to prevent damage.

Yes, a quality artisanal aftermarket strap is entirely compatible with the IW6598-02 provided it respects the 16-millimetre lug width. We recommend selecting producers who understand the luxurious nature of the rose gold case and utilise materials of excellence—authentic alligator, vegetable-tanned calf, vintage canvas NATO. Avoid economical solutions that do not honour your timepiece.

The lifespan of a leather strap depends on daily wear and maintenance. Quality artisanal alligator or calf leather, with appropriate care—periodic cleaning, careful drying after moisture exposure, avoiding excessive heat—can last 5-8 years. Vintage-weave canvas NATO has comparable longevity under consistent use. The 18-month warranty offered by Casati Milano covers manufacturing defects.