does the second hand still sweep but the hour and minute hand stop ? but when you wind the hands in the setting position the hands move ? could this be a loose cannon pinion not picking up the power from the centre wheel ?
the 5.3 tube should fit however all reps have qc problems and you may need to re-tap the hole. there is never a guarantee that gen parts match the reps in regards to thread dia and pitch
i have had the same issue twice from ndt. very aggravating. it was not the movement. i made a scraper out of a triangluar file and cut the ring down to allow the movement to drop in. the second time i chucked up a round diamond stone in a jewellers drill press and carefully with small cuts got the ring cut down and then scraped it. the scraper is just very hard steel and hollow ground on a wheel minding heat build up not to loose the temper
the second hand is carried on the fourth wheel pinion. the tube on second hand that slips over the pinion is double in length of a regular movement ie a 1530 vs a 1565gmt. i just wonder if the ofrei part would work. if it did i would like to do that mod too