1mm. While AP promoted the watch as “Additional-Thin,” enthusiasts continued to seek advice from it as “Jumbo” presented its 39mm situation. Other slight adjustments involved a switch from a white date wheel to a black version to the blue and black dials and also the addition of a double-deployant clasp https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/