1mm. Even though AP promoted the watch as “Extra-Thin,” followers ongoing to check with it as “Jumbo” provided its 39mm scenario. Other slight changes bundled a switch from a white day wheel into a black Variation within the blue and black dials as well as addition of the double-deployant clasp https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/