Orient RA-AA0C01B39B Mechanical Automatic Watch

The Orient Kamasu RA-AA0C01B39B stands out with its matte black dial featuring a textured finish that eliminates reflections and ensures optimal readability in any lighting condition. Applied rectangular steel indices contrast elegantly against the dark background, while dauphine-style hands with luminescent treatment ensure nighttime visibility. The day-date window positioned at 3 o’clock features the characteristic red background for Sunday, a distinctive detail of the Kamasu series. The unidirectional bezel with graduations every 5 minutes allows precise timing of dives and sports activities.

Inside operates a robust Orient automatic calibre with bidirectional rotor that ensures efficient winding of the mechanism. This movement offers hours, minutes, central seconds, day of the week and date functions, maintaining the precision characteristic of Japanese mechanical watchmaking. The screw-down crown reinforces the water-resistance of the assembly, allowing dives up to 50 meters depth. The impact-resistant mineral crystal protects the dial from scratches and daily knocks.

Orient Watch was founded in 1950 as one of Japan’s leading watch manufactures, developing in-house mechanical and automatic movements. The brand has maintained its commitment to accessible mechanical watchmaking, combining Japanese tradition with technical innovation. Each Orient watch is assembled following strict quality controls at their facilities in Japan, where decades of micromechanical experience translate into reliable and durable timepieces.