1mm. When AP promoted the watch as “Additional-Thin,” lovers ongoing to consult with it as “Jumbo” provided its 39mm case. Other slight alterations involved a change from a white day wheel to your black Model within 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/