Description
The Seiko caliber 8T63 (actually marked 8T63A) is found in some Seiko branded watches. This mechaquartz chronograph movement is made in Japan and has zero (0) jewels. This movement has been produced by Seiko since at least 2015.
This movement is essentially the Seiko only version of the VK63. When used in Seiko watches, it may be signed with Seiko Time Corp. When found in non-Seiko watches, the VKXX will usually be signed with SII (Seiko Instruments).
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