Seiko Prospex – SPB317J1

Modern Re-interpretation of the TURTLE ORIGIN*: Ref.6105-8000 (1968)] – Adopt the full-flow case design that is the origin of the current Turtle. – Thinnest case of SEIKO mechanical divers (case thickness：12.3mm) . Reinforced silicone strap with rail pattern that inherits the design of the TURTLE ORIGIN. – Date at the 4.5 o’clock position gives high visibility, without interfering with the indexes.