1mm. Whilst AP promoted the watch as “Further-Thin,” enthusiasts ongoing to check with it as “Jumbo” presented its 39mm case. Other slight modifications integrated a change from a white day wheel to a black Edition on 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/