Originally Posted by
bakaneko85
Achieving JL sapphire even once allows you to sign up as part of Jal Global Club, which basically gives you OW Sapphire status for as long as you keep that membership alive, so a quasi lifetime status. For people inside Japan this means signing up for JL credit card and paying the annual due, while for people overseas they'll just deduct a few thousand miles p.a from your JMB mileage balance. That's how we got so many OW S members in Japan!
If I'm reading the website right, I just need to earn JMB Sapphire then apply for JGC which requires 5k miles to be deducted from the JMB Account. Every year I would just need to credit at least 5k miles into the JMB account for the JGC membership renewal. This retains my JGC membership which has Oneworld Sapphire status.
Will tryout the JGC program for next year's flights.