1mm. When AP promoted the watch as “Extra-Thin,” admirers continued to confer with it as “Jumbo” specified its 39mm scenario. Other slight improvements provided a switch from a white day wheel into a black version to the blue and black dials and also the addition of a double-deployant clasp for https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/