Todays test: 3.2 revolutions on the crown = 1 full revolution on the mainspring barrel arbor = 6.25 hour run time, second hand not engaged. This is in line with prior tests. Will try the auto winder tomorrow.

: Jeff - Glad you asked. I need to clarify this statement:

: "Manual winding - 3 to 4 twist on the crown (depending on the
: person
: winding = around 360 degrees on the mainspring barrel arbor) is
: equal to:
: Auto winding - 180 or so full revolutions on the micro rotor."

: This is obviously not a very accurate measurement as it would vary
: a lot from person to person. So instead of using
: "twists" I will from now on use one full 360 degree
: revolution on the crown as a bases. One full revolution on the
: crown is equal to about 120 to 130 degrees on the mainspring
: arbor or more accurately (I just checked), 3.2 full revolutions
: on the winding crown is equal to 360 degrees on the mainspring
: arbor. So it would be better to use 3.2 full revolutions (3.2
: would be a little tricky but it does not have to be exact) on
: the crown as a basis to see how long the movement will run from
: completely run down. This should still run the movement for 6 to
: 8 hours (from completely wound down) without the second hand
: engaged.
: I will start this manual test this morning on a movement that I
: serviced a couple of days ago and report back. After that, I
: will put it on the auto winder for 180 revolutions to see if I
: get the same results. I do not necessarily recommend auto
: winders for this movement, I just got one to set up a standard
: test just for this movement.
: I expect to see a lot of variation in this test depending on the
: condition of the movement and prior service. Craig