My ref. 5327 Perpetual calendar of Breguet came with a box that it is a watch winder... There is an Orbita Database on Orbita'a web sitet hat has most models of automatic watches, stating if the watch winds CW, CCW, or both and how many TPD (turns per day) must have, by the manufacturer...
Now the power reserve is almost all the time to the full position.... In differentiation of other winders, the Breguet winder has positions for many TPD.. the 5327 needs, according to Orbita 860 TPD, CW.... and I have it in this setting.... Also it turns majestically slow, cycling the turns with periods of rest, while most winders turn very fast...
I should think that. since Breguet ships the watch WITH the winder, it should mention any contraindication if leaving it on the winder should be contraindicated... Does the fact that the power reserve is always in the full position harms the watch? I know that, for hand wound watches, there is a comendation to wind it to full every day...
What do you think?
Tassos