Tucked inside the re-proportioned skin diver-style case we find a new
link movement for the Prospex divers with Seiko fitting the 6R55. The previous generation had the 6R35 and the new 6R55 offers an incremental improvement in power reserve 72 vs. 70 hours. This is the same
link movement we've
link seen used in some references of the recent King Seiko line.