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watchmaker · 9 April 2019, 08:15 AM

The square section of the stem should fit the sliding pinion (the somewhat hourglass shaped part) such that when you turn the stem, the sliding pinion is rotated too.

9 April 2019, 08:15 AM	#3
watchmaker TechXpert Join Date: Feb 2009 Real Name: Scott Location: London Posts: 2,238	The square section of the stem should fit the sliding pinion (the somewhat hourglass shaped part) such that when you turn the stem, the sliding pinion is rotated too.