Orient Contemporary “Stretto” Semi-Skeleton RA-AR0005Y | Mechanical Automatic Watch with In-House Caliber F6S22, Sapphire Crystal, Open Heart Dial, and Leather Strap (40.8 mm, 50 m)

Professional Description

The Orient Stretto RA-AR0005Y (part of the renowned Contemporary Semi-Skeleton collection) embodies the sophistication of traditional Japanese mechanical watchmaking adapted to today’s lifestyle. With an impeccable balance between classic dress watch aesthetics and cutting-edge technology, this model reveals the beating heart of its micromechanics through a meticulously crafted open heart window at the 9 o’clock position, offering an uninterrupted view of the balance wheel’s oscillation.

Inside its 40.8 mm case beats the Orient in-house F6S22 caliber, an automatic movement designed and assembled in Japan that features manual winding and a hacking seconds function for precise time adjustment. The watch features a dark, highly legible dial with a sub-dial at 6 o’clock for the small seconds, protected by a scratch-resistant sapphire crystal. Paired with a genuine leather strap that enhances its natural elegance and a screw-down transparent case back, it stands out as a top choice for both executive settings and distinguished everyday wear.

Key Features

• F6S22 Manufacture Caliber (Made in Japan): In-house automatic mechanical movement, equipped with 22 jewels, over 40 hours of power reserve, manual winding capability, and a seconds stop function for precise synchronization.
• Semi-Skeleton Complication and Small Seconds: An open heart window at 9 o’clock to view the mechanical escapement in action, combined with an eccentric subdial at 6 o’clock housing the independent continuous seconds hand.
• Highly Durable Sapphire Crystal: The dial is protected by a flat sapphire crystal of high optical purity, resistant to everyday wear, abrasion, and scratches.
• Selected Genuine Leather Strap: Genuine leather strap (22 mm lug width) with a supple texture and hand-stitched detailing, providing warmth, superior comfort, and a distinct dress watch profile.
• Screw-Down See-Through Caseback: Screw-down caseback with a transparent crystal window (see-through caseback), allowing you to admire the engraved oscillating weight and the caliber’s gear train.
• Low-Light Visibility: Faceted hands and hour markers treated with high-luminous luminescent paste for quick reading in dim lighting.

Technical Specifications

Component / Feature Technical Detail
Brand and Collection Orient (Contemporary Series / Stretto Semi-Skeleton)
Reference / Model RA-AR0005Y
Movement Type In-House Automatic Mechanical (Orient Caliber F6S22)
Caliber Origin Manufactured in Japan (Japan Movt)
Number of Jewels 22 jewels
Power Reserve Over 40 hours
Mechanical Functions Automatic winding via rotor, manual winding, and hacking seconds
Case Material Stainless steel (SUS304) with polished and brushed finishes
Case Dimensions Diameter: 40.8 mm | Length (lug to lug): 48.0 mm
Front Crystal Flat, scratch-resistant sapphire
Case Back Screw-down with a transparent mineral crystal window
Dial Black with a refined texture, Open Heart window, and sub-dial at 6 o’clock
Strap High-density genuine leather, 22 mm wide, traditional buckle clasp
Water Resistance 50 meters (5 ATM / 5 Bar)

Dial Details and Functional Performance

• Asymmetrical Visual Composition: The integration of the openwork window at 9 o’clock and the small seconds sub-dial at 6 o’clock breaks away from the conventional three-hand layout, creating a dial with dynamism and visual depth.
• Polished Faceted Indexes: Applied hour markers with a mirror finish that capture light from different angles for immediate readability.
• Dual Mechanical Winding System: The watch is naturally powered by the movement of the arm via its bidirectional oscillating weight, and can also be manually wound using the fluted crown after periods of inactivity.