is a high-performance, sports-built Japanese automatic diver's timepiece from Orient’s renowned Sports Collection. Recognized globally among watch collectors and aquatic horology enthusiasts by its popular series nicknames—the "Kanno", "Big Mako", or "Mako III 44mm"—this 44mm watch pairs a solid stainless steel case with a captivating sunray blue dial, a day-date calendar display at 3 o'clock, a high-performance in-house automatic movement, a durable mineral crystal, a certified 200-meter water resistance rating, and a solid stainless steel construction. Engineered for active sports enthusiasts, scuba divers, and daily wearers seeking an assertive, large-format wrist presence with Japanese mechanical reliability, it transitions effortlessly from underwater adventures to urban casual style. The defining visual highlight of this RA-AA0009L reference is its deep, light-capturing sunray blue dial face framed by a matching unidirectional rotating blue elapsed-time dive bezel. Set beneath a heavy-duty protective crystal, the dial features bold rectangular baton hour markers and prominent sword-shaped hands thickly coated with luminous material for exceptional legibility in dark deep-water conditions. A framed day and date calendar window is positioned at 3 o'clock. The harmonic contrast between the rich sunray blue dial, smooth blue bezel insert, bright luminous indices, and lustrous stainless steel casing delivers a commanding, dive-ready presence on the wrist. Beneath its rugged exterior, the watch is driven by Orient's reliable in-house Caliber F6922 automatic mechanical movement with hand-winding and second-hand hacking capabilities. Operating at 21,600 vibrations per hour (3 Hz) across 22 jewels, this self-winding engine provides a 40-hour power reserve, ensuring consistent timekeeping performance driven entirely by natural wrist motion or manual crown winding. The case features substantial, bold diver's proportions, measuring 44.0mm in case width with a case profile thickness of 12.9mm and a lug-to-lug distance of 50.0mm, offering a planted and powerful presence on the wrist. Dial protection is provided by a heavy-duty mineral crystal designed to withstand everyday impact. Engineered for severe aquatic environments and deep diving, the solid stainless steel case incorporates a solid screw-down caseback and a protected screw-down crown at 3 o'clock, achieving a certified 200-meter (20 bar / 660 ft) water resistance rating suitable for swimming, snorkeling, and recreational scuba diving. The timepiece comes completed on an integrated stainless steel link construction, secured by a solid fold-over deployment clasp with a double push-button safety release mechanism.
