Orient Star RK-AU0309B Automatic Diver Black Dial
Orient Star RK-AU0309B Automatic Diver Black Dial
The Orient Star RK-AU0309B is a mechanical diver’s watch from the Orient Star Sports Collection. It features a black dial, 200 m air-diving water resistance, sapphire crystal, and the Orient Star signature power-reserve indicator.
The watch is powered by Orient’s F6N47 automatic movement, with manual winding, hacking seconds, a date display, and approximately 50 hours of power reserve. Its 43.6 mm stainless-steel case is fitted with a unidirectional rotating bezel and luminous hands and markers.
A stainless-steel bracelet, screw-down crown, screw-in caseback, and 22 mm band width complete the practical diver design. The watch combines robust underwater specifications with the refined styling associated with the Orient Star line.
Key Features
Orient F6N47 automatic mechanical movement
Manual winding and hacking seconds
Approximately 50-hour power reserve
43.6 mm SUS316L stainless-steel case
Black dial with luminous hands and hour markers
Sapphire crystal with anti-reflective coating
200 m air-diving water resistance
Unidirectional rotating bezel and date display
Specifications
Specification | Details |
Brand | Orient Star |
Model / Reference | RK-AU0309B |
Collection / Series | Sports Collection |
Movement | Orient F6N47 |
Caliber | F6N47 |
Movement Type | Automatic mechanical with manual winding |
Case Material | SUS316L stainless steel |
Case Diameter | 43.6 mm |
Case Thickness | 14.0 mm |
Lug Width | 22 mm |
Crystal | Sapphire crystal with anti-reflective coating |
Dial Color | Black |
Dial Details | Luminous hands and hour markers; power-reserve indicator |
Caseback | Screw-in caseback |
Bezel | Unidirectional rotating bezel |
Bracelet / Strap | Stainless-steel bracelet |
Clasp / Buckle | Push-button, double-lock, triple-folding clasp |
Water Resistance | 200 m air-diving water resistance |
Functions | Time, date, hacking seconds, manual winding, power-reserve indication |
Power Reserve | Approximately 50 hours |
Other | 22 jewels; accuracy +25/−15 seconds per day |
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