The Orient RA-AR0002B (also referenced as RA-AR0002B10B) is a bold, modern Japanese automatic dress timepiece from Orient’s acclaimed Contemporary Collection. Recognized among horology purists and watch enthusiasts by its popular series nicknames—the "Semi-Skeleton", "Small Seconds Open Heart", or "Modern Skeleton"—this 40.8mm watch pairs a solid stainless steel case with an intense black dial, an open-heart balance wheel aperture at 9 o'clock, an overlapping small running seconds sub-dial at 6 o'clock, a high-performance in-house automatic movement, a premium scratch-resistant sapphire crystal, an exhibition see-through caseback, a 50-meter water resistance rating, and a solid stainless steel construction. Designed for modern executives, watch purists, and daily wearers seeking an assertive blend of contemporary mechanical artistry and Japanese precision, it transitions effortlessly from business meetings to formal evening occasions. The defining visual highlight of this RA-AR0002B reference is its multi-layered semi-skeleton dial architecture set against a deep, contrasting black dial face. Positioned at 9 o'clock is an open-heart window that reveals the beating mechanical escapement and balance wheel, seamlessly intersected by an asymmetrical small seconds sub-register at 6 o'clock. Set beneath a flat scratch-resistant sapphire crystal, the dial features polished silver-tone baton hour markers, faceted hands, and a clean minute track along the outer rim. The harmonic contrast between the pitch-black dial face, exposed mechanical movement, silver-tone accents, and lustrous stainless steel casing delivers a commanding, executive presence on the wrist. Beneath its artistic exterior, the watch is driven by Orient's dedicated in-house Caliber F6S22 automatic mechanical movement with hand-winding and second-hand hacking capabilities. Operating at 21,600 vibrations per hour (3 Hz) across 24 jewels, this self-winding engine provides a 40-hour power reserve, delivering reliable timekeeping powered entirely by the natural motion of the wearer's wrist or manual winding via the crown. The case features perfectly balanced, modern dress proportions, measuring 40.8mm in case width with a slim case profile thickness of 11.0mm and a lug-to-lug distance of 48.0mm, ensuring a comfortable and well-proportioned fit under tailored shirt cuffs. Superior optical clarity and scratch protection are guaranteed by a premium flat sapphire crystal. The reverse side features an exhibition see-through screw caseback displaying the internal mechanical movement and decorated oscillating rotor in action. Built for daily wear and versatile utility, the solid stainless steel case incorporates a push-pull crown and achieves a certified 50-meter (5 bar / 165 ft) water resistance rating suitable for daily wear, rain, hand washing, and light splashes. The timepiece comes completed on an integrated stainless steel link construction, secured by a solid fold-over deployment clasp with a push-button release safety mechanism.
