the statement grow their own crystal can we assume its for all seiko watches? even in our cheaper seiko? or just 9F or GS/Credor quartz?
Swatch may do that too, I don't know since they are huge.
only read that GS crystals have been put thru stringent selection process and then put thru 3 months of training before being use in 9f. maybe those that didn't pass will be put into use in the other range
lol machiam Special Force breed of crystal.
but beyond that, actual construction n design of the movement plays a big part in the acuracy as well.
the processes involve in production of high end quartz movement is different from mass produced ones.
