Tudor introduced the Cheap Breitling Replica Heritage Black Bay Chrono, powered by the Calibre MT5813, an automatic, integrated, chronograph movement with column-wheel and vertical clutch – sort of the ultimate chronograph architecture.
The Tudor Calibre MT5813 is indeed based on the Breitling B01, with a few technical and visual modifications. To create a link between this movement and the MT56xx, the Breitling Replica Watches B01 receives a high-precision regulating organ developed by TUDOR as well as a simplified decoration – a choice guided by the wish to offer the BB Chrono at an accessible price and because the movement is hidden behind a steel caseback anyway.
At the same time, Breitling announced the introduction of a new series of watches, the Breitling Replica Superocean Heritage II, powered by the automatic Calibre B20. Stupefaction again, the B20 is actually derived from the Tudor Calibre MT5612, meaning a 70h power reserve calibre, COSC certified with 4Hz frequency and variable inertia balance. The main difference with the Tudor version comes from the more advanced decoration, with Geneva stripes, applied on the Breitling version.
On one hand, this situation is extremely beneficial for AAA Breitling Replica Watches, which has been in a rather difficult situation since a few years now. With Tudor sourcing movements, they can increase their production, absorbing some of the costs of development for their B01 and making sure that the manufacture is producing enough to absorb exploitation costs.