The Portuguese Chronograph IW371603 is a limited edition of 250 pieces commemorating the 150th anniversary in 2018. It features a 41 mm 18K red gold case, A silver-plated dial, Blued leaf hands and Arabic numerals, And a black alligator strap. The thin bezel, Large dial, And vertically arranged chronograph subdials highlight the elegance typical of the Portuguese.
Equipped with the IWC in-house automatic caliber 69355, It offers excellent functions such as a 46-hour power reserve, Column-wheel chronograph, 30-minute counter at 12 o’clock, Small seconds at 6 o’clock, Sapphire see-through back, And water resistance to 30 metres. It also has other high-end features such as a small hacking seconds, Domed sapphire glass, And anti-reflective coating on both sides.

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