IWC Portofino Chronograph (IW3910-21) Lug Width, Strap & Band Size
Looking for the perfect watch band for your IWC Portofino Chronograph (IW3910-21)? Look no further! Our collection features a wide variety of 21mm watch bands that are compatible with this popular model.
Measuring 42.00mm in diameter, the IWC Portofino Chronograph (IW3910-21) is a sleek and stylish timepiece that pairs perfectly with any outfit. And with its 21 mm lugs, finding the right watch band has never been easier.
To ensure the perfect fit, be sure to select a 21 mm watch band from our collection. With a range of colors and materials to choose from, you're sure to find the perfect band to match your style. Shop now and upgrade your IWC Portofino Chronograph (IW3910-21) today!