Casebacks

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The caseback is the cover that seals the back of the case. This collection has two paths: a solid 316L stainless steel back for a clean, classic look, or a sapphire exhibition back that turns the rear of your watch into a window on the movement — rotor, bridge and all. There's also a slim solid version that cuts the back's thickness from 1.3mm to 0.75mm for a lower-profile build. All three are made for SKX cases running Seiko NH movements.