1mm. When AP marketed the watch as “Excess-Thin,” enthusiasts continued to check with it as “Jumbo” given its 39mm situation. Other slight variations integrated a change from a white day wheel to some black Edition over the blue and black dials as well as addition of a double-deployant clasp for https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/