1mm. Whilst AP promoted the watch as “Extra-Thin,” admirers continued to seek advice from it as “Jumbo” provided its 39mm situation. Other slight changes incorporated a switch from a white date wheel into a black Variation within the blue and black dials as well as addition of a double-deployant clasp https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/