1mm. Although AP promoted the watch as “Further-Thin,” lovers ongoing to check with it as “Jumbo” supplied its 39mm circumstance. Other slight changes bundled a switch from a white date wheel to a black version about the blue and black dials as well as the addition of a double-deployant clasp https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/