Guest Teedotyyz Posted June 7, 2007 Report Share Posted June 7, 2007 Can someone advise what size of stem is required for an Asian Auto 21J movement? I have checked Ofrei and E-Bay but do not know what size is required or if I need an extender. I snapped mine clean in half and have sourced a new crown but cannot get the stem. It is the only thing left to put a project watch back together. Thanks. Tim. Link to comment Share on other sites More sharing options...
sssurfer Posted June 7, 2007 Report Share Posted June 7, 2007 Hi, you need a caliber 90 stem (0.90 mm diameter). But if you actually snapped your stem in half then an extender might not work, you might need a brand new stem. The extender works good when the stem is just cut short on its crown end, so that you just need a short extender. That is because the extender's female end is a swelling end that can't go deep into the movement, it needs to stay inside the spacer ring between the movement and the case wall. Hope this makes sense. Link to comment Share on other sites More sharing options...
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