B2703 Produced by ZF; a brand-new World Portugal 7-day chain

1️⃣ Case: With the watch diameter remaining unchanged at 12 mm, the thickness has been reduced from 14.1 mm to 13 mm. 2️⃣ Mirror: To achieve a thinner appearance, iwc used a sapphire mirror with a “pot lid” design. This not only provides more space for the hands, but also enhances the aesthetic appeal significantly. The mirror on the back also features a sapphire mirror with a “pot lid” design, allowing the back view to be displayed more clearly and beautifully. 3️⃣ Dial: Significant changes have been made compared to previous models. The new dial eliminates the track-type markings for the small second hand; also, the “1” area on the power reserve display for the 3 markers no longer uses red color. These adjustments and optimizations make the watch more concise and refined, while also enhancing the overall integrity of the dial. 42 4 9