This sounds normal for a Miyota 8215 to me. I have a couple of watches with 8215s.
(1) With crown unscrewed but not pulled out, you can hand wind it.
(2) Pull crown out to first click and you can set the date.
(3) Pull crown out to second click and you can set the time.
The click back in to handwinding position from time setting position is actually two clicks but they tend to go in at once so that they are not distinguishable.
The Zeno Explorer doesn't have a date does it, but the 8215 movement does have a date. So this single click between hand wind and time set is the date setting position.
Instructions here: http://www.citizen.co.jp/miyota_mvt/..._8215_821A.pdf