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Richardadelberg
·I keep having the same problem usingGS ET 30.6 crystals with original omega split cut ring that when crystal is pressed in tight the watch stops! Happened with 5 diff pie pan dials, diff cases, diff crystals. If I don’t press crystal in completely it runs. I thought perhaps second pinion too long but for 5 diff movements, 561/564? I tried hi dome crystal without tension ring and they run but dial needs a tension ring. Did omega use a specific height 30.6 crystal for these pie pan dials in this 168.005 case? If so what was the height or numbet