This watch pays tribute to Seikos iconic 1968 "Cave Diving" classic, combining heritage design with modern performance. Its striking blue gradient dial is inspired by the mysterious depths of the ocean, offering both style and legibility. Powered by Seikos in-house 8L35 calibre, it delivers precise, reliable performance tailored for serious diving. Designed for extreme conditions, it features a unidirectional rotating bezel, screw-down case back, and 200m water resistance. As part of the Seiko Prospex line, short forProfessional Specifications, this timepiece embodies the brands dedication to durability, functionality, and adventure-ready design. Powered by the automatic movement with a power reserve of up to 50 hours. Presented on a silver stainless steel bracelet with push button deployment clasp. Scratch resistant sapphire crystal glass. 42.6mm case width. 200 metre water resistance.