The Tudor Black Bay Chrono 39 measures just 39mm in diameter and is slightly over 13mm thick. This new size not only makes it significantly slimmer than its predecessor but also allows it to retain the high-specification MT5813 movement. Best luxury Tudor Black Bay clone watches online, buy replica watches at firstwatchclone.
The dimensions of this latest model are virtually perfect; even more impressive is that it houses the MT5813 movement—a caliber offering outstanding technical performance, albeit one that is not particularly slim. While a bright yellow dial may not appeal to everyone, the new case size is spot-on. Given the brand's history, however, it is likely that additional dial colors are in development, meaning this case size will almost certainly be offered in a wider range of colorways in the future.
The watch features a bright yellow dial paired with black accents; the dial markings, hands, and hour markers are all black, as is the aluminum bezel insert. Although yellow is not a common color in Tudor’s current lineup—despite appearing to be a recent trend for the brand—Tudor has previously released chronographs with dials in this hue, including the "Tiger" chronograph, a model named after brand ambassador Tiger Woods.
Like other Black Bay Chrono models, the "Bumblebee" is powered by the MT5813 movement. Although not an in-house Tudor design—it is based on the Breitling B01 caliber—it has been extensively reworked by Tudor and is manufactured at the brand's own Kenissi facility. Upgrades include a variable-inertia balance wheel with a silicon hairspring. Consistent with Tudor's in-house movements, the MT5813 offers a precision of -2/+4 seconds per day, a standard that exceeds the -4/+6 second range typically required for COSC chronometer certification.
