1mm. While AP marketed the watch as “Extra-Thin,” lovers ongoing to consult with it as “Jumbo” given its 39mm case. Other slight adjustments incorporated a switch from a white date wheel to a black Variation around the blue and black dials along with the addition of the double-deployant clasp to https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/