The Orient Sun and Moon Open Heart (RN-AS0003J) is a refined mechanical timepiece from the Japan Domestic Market (JDM) collection. It blends the classic “Sun & Moon” day/night indicator with an “Open Heart” dial, offering a technical look at the movement’s internal oscillations.
Product Description
This model features a polished stainless steel case and a sophisticated silver-white dial protected by a scratch-resistant sapphire crystal. The standout feature is the 24-hour disk at the 6 o’clock position, which rotates to show a sun during the day and a moon at night. An aperture at 9 o’clock reveals the balance wheel of the in-house Japanese automatic movement. Finished with heat-blued hands and a genuine leather strap with a deployment buckle, it serves as a versatile dress watch for formal and business-casual settings.
Watch Specifications
| Feature | Specification |
|---|---|
| Model Number | RN-AS0003J (JDM Version) |
| Collection | Classic Sun & Moon |
| Movement | Orient Caliber F6L24 (Automatic, Hand-winding, Hacking) |
| Power Reserve | Approx. 40 hours |
| Case Material | Stainless Steel |
| Case Diameter | 42.0 mm |
| Case Thickness | 14.0 mm |
| Lug-to-Lug | 49.5 mm |
| Dial Color | Silver-White with Open Heart window |
| Crystal | Sapphire Crystal |
| Case Back | See-through Screw Case Back |
| Water Resistance | 50 Meters (5 bar) |
| Band Material | Black Leather |
| Band Width | 21 mm |
| Clasp Type | Three-fold Clasp with Push Button (Deployment) |
| Origin | Made in Japan |
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