At first glance, It may not look much different from the existing 43mm entry-level chronograph models, But the IW3780XX lineup has seen its movement updated from Valjoux Cal. 7750 to Cal. 69385. The thickness has also been reduced from 15.4mm to 14.8mm, Improving the wearer’s comfort. In addition, The dial and color-coded date window have been changed to a white background for improved readability, And the small seconds, Which was located at the 9 o’clock position, Has been moved to the 6 o’clock position.

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