It's a 5146 model. With some models, simply putting the back cover back on (with the battery cover also on of course) will hold everything in place without the clip being attached. I don't think that would work - the problem being that if the clip moves the tiniest bit from the perfect spot where it barely carries current, the whole thing stops.
Jun 9, 2008 · Adjusting the chronograph (ex:after battery change or a hard shock) 1. Pull the crown to position B. (Crown positions are A-Normal, B-First position, C- Second position) 2. Press the upper button to reach the position 12 h 00 with the hand of the 1/10 second counter. 3. jfgMp5S.