Tudor fans are buzzing with excitement! If you buy from a link, we may earn a commission. Learn more It’s been a long time coming, but nearly a decade after its introduction, the Tudor Black Bay Chrono is getting a smaller, streamlined case. Following in the footsteps of its older brother, the Black Bay Fifty-Eight diver, Tudor’s bicompax chronograph is now available in a 39mm case. On top of that, it cuts a slimmer profile and makes one hell of an entrance with the new “Bumblebee” color scheme.