For years, Seiko's SKX007 was the default answer to "what's the best diver under $300?" When Seiko discontinued it, Orient's Kamasu — named after the Japanese word for barracuda — was already positioned to take over, and enough SKX owners have made the switch that reviewers now debate which watch actually deserves the affordable-diver crown.
The RN-AA0003R backs up the reputation with genuine specs: 200m water resistance, a screw-down crown, sapphire crystal (where the SKX used mineral glass), and an in-house automatic movement with 40 hours of power reserve, hacking, and hand-winding. A bilingual day-date display and a case that wears smaller than its 41.8mm diameter suggests round out a watch built to be a daily beater rather than a special-occasion piece.
