1mm. Whilst AP promoted the watch as “Extra-Thin,” followers continued to consult with it as “Jumbo” offered its 39mm situation. Other slight modifications incorporated a change from a white day wheel to the black version to the blue and black dials as well as addition of a double-deployant clasp on https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/