This is just for fun and sharing info. Seiko 6309 movement Vs. the ETA 2824 moment. Which is the best for a military watch? Of the two which one will have a longer service life? One can still find Seiko 6309 150m divers still working well after 30 years of use and neglect. However the same is true for some diver or mil watches powered by the ETA 2824 series of movements. I understand the type of case has much to do with the service life. So what are the merits of the two types. Which movement do folks on the MWR like best? Let me know. Thanks.