I just checked back through documentation, and here are the time intervals:
Day 0: Watch dropped off at local Melbourne Swatch Service Centre
Day 9: Notified by local service centre of need for watch to go to Breguet, Switzerland
Day 43 (6 weeks): Quote received from Breguet for work required
Day 78 (11 weeks): Notified of watch arriving back at Melbourne Swatch Service Centre and awaiting final Quality Control check.
Day 83 (12 weeks): Watch picked up from Melbourne Swatch Service Centre.
So really, the key period of service (Days 43 to 78), including transit from Switzerland to Australia, took only 5 weeks.
Just one persons experience, but it seemed pretty good to me.
Andrew