1mm. While AP promoted the watch as “Extra-Thin,” enthusiasts ongoing to make reference to it as “Jumbo” presented its 39mm circumstance. Other slight adjustments included a swap from a white date wheel into a black Model to the blue and black dials along with the addition of the double-deployant clasp https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/