I've been researching the Grand Seiko line and everything seems to point to better build quality, better time keeping and attention to detail over Rolex. From what I gather GS's have more hand time (a skilled watchmaker actually building/finishing the watches vs a machine) because they are lower volume than Rolex. Many people have been pushing me towards Grand Seiko for my first real high end watch (I bought a Citizen Signature "Grand Classic" to hold me off in the meantime). My only question is in regards to movement. After owning this automatic Citizen I've had for a while I must say I do see the Charm of an automatic movement, and the sense of the watch just being organic/alive. For everyday use though I feel like a Quartz watch just makes way more sense. I can't really get a solid answer on service intervals for the GS movements - is it the 9F quartz movement that is rated for a 50 yr service interval ? The Spring Drive is very intriguing, the only thing i'd be worried about is shock... I can tell that even something basic, like gesturing with my hand or clapping causes the rotor to spin like mad in my current watch and i can feel the vibration on my wrist (which is concerning). Would the spring drive movement be as susceptible to shock ? My father has a 30+yr old Quartz Seiko he got when I was only a few years old and that sucker is still going (he swears he's only ever had to have batteries replaced - and only 2x at that). Which is really starting to convince me that I should spend my money with a brand that pays more attention to the product rather than the marketing.