1mm. Even though AP marketed the watch as “Additional-Thin,” enthusiasts ongoing to confer with it as “Jumbo” supplied its 39mm case. Other slight variations provided a change from a white day wheel to some black Variation about the blue and black dials and the addition of a double-deployant clasp into https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/