1mm. Though AP promoted the watch as “Added-Thin,” enthusiasts ongoing to consult with it as “Jumbo” specified its 39mm scenario. Other slight adjustments incorporated a switch from a white date wheel to some black Edition over the blue and black dials as well as addition of the double-deployant clasp on https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/