Hi all,
Finally got a response from Breguet. Basically fine to use a watch winder, it won't harm the watch. The calibre is 387 and the watch should be wound clockwise (facing the dial) only. They are in the process of doing final testing as to how many revolutions per day they recommend; will advise once they let me know.
Meanwhile, I have some pictures of the watch but don't know how to post them here - can someone please advise?
Best,
Adrian