1mm. Even though AP promoted the watch as “Added-Thin,” admirers ongoing to confer with it as “Jumbo” given its 39mm scenario. Other slight modifications incorporated a switch from a white day wheel to the black Variation to the blue and black dials along with the addition of a double-deployant clasp https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/