I have recently noticed that my Trainmaster Power Reserve makes a clicking sound when I manually wind it clockwise. It may have done this before, but frankly I don't remember it. Secondly, when I am depressing the crown to screw it in, it continues clicking and winding the mainspring (you can tell because the power reserve meter reading continues to increase). It has a 2897 movement which I understand is a 2892 with a power reserve complication added. I have two other watches with base 2892 movements (a 2894 with a chronograph and 2893 with a GMT complication) and neither clicks when wound.
Can anyone shed light on this? Is it normal, and in my advancing age have just forgot this behavior?