I have close to 0 knowledge about watch making. If Tudor were to aspire making a 39mm GMT.. does that mean building a complete new movement? Of can they 'just' add a layer to the BB58 movement for the extra complication? Hence creating a slightly thicker watch?
I assume if they could they will probably wait a few years because they already have a hard time meeting demand on the BB58 but a 39mm GMT would be a guaranteed hit. From a busines point of view its probably better to release a bunch of different colored bezels and dials for all models though
Anyway; my question is about the movement and how complicated such an upgrade thing is