And yet, for the faithful, mechanical (or analog) watch manufacturers continue to produce link feats of engineering completely divorced from modern technology – link mechanized timekeepers free of batteries or motherboards, link that are capable of things humans are not.

The new caliber 9RA5 incorporates a number of link enhancements to the self-winding Spring Drive movements. It seems to be an objective for Grand Seiko to have the potential to produce thinner watches, and while the SLGA001 is a thick link watch, the caliber 9RA5 incorporates some changes in construction to link allow for a flatter profile.