Orient Star M45 F7 Small Second RK-BS0001E Automatic Green Dial
Orient Star M45 F7 Small Second RK-BS0001E Automatic Green Dial
The Orient Star RK-BS0001E is an M45 F7 Small Second model from the Classic Collection. It combines a green textured dial with a small-seconds display at 6 o’clock and a power-reserve indicator at 12 o’clock.
Power comes from Orient Star’s automatic F7H44 movement, which also supports manual winding and hacking seconds. The 39 mm stainless-steel case features a double-curved sapphire crystal with SAR anti-reflective coating, an exhibition caseback, and a brown leather strap secured by a push-button tri-fold clasp.
The dial omits a date display for a balanced layout, with Roman numeral markers, a railway-style minute track, and leaf-shaped hands. The watch offers more than 50 hours of power reserve and 3 bar water resistance.
Key Features
Orient Star F7H44 automatic movement
Manual winding and hacking seconds
More than 50 hours of power reserve
Green textured dial with small seconds
Power-reserve indicator at 12 o’clock
39 mm SUS316L stainless-steel case
Double-curved sapphire crystal with SAR coating
Brown leather strap with push-button tri-fold clasp
Specifications
Specification | Details |
Brand | Orient Star |
Model / Reference | RK-BS0001E |
Collection / Series | Classic Collection M45 F7 Small Second |
Movement | F7H44 |
Caliber | F7H44 |
Movement Type | Automatic mechanical with manual winding |
Case Material | SUS316L stainless steel |
Case Diameter | 39.0 mm |
Case Thickness | 11.7 mm |
Lug Width | 20 mm |
Crystal | Double-curved sapphire crystal with SAR anti-reflective coating |
Dial Color | Green |
Dial Details | Textured sandblasted finish, Roman numeral markers, railway-style minute track, leaf-shaped hands, small seconds at 6 o’clock, power-reserve indicator at 12 o’clock |
Caseback | Exhibition see-through caseback |
Bracelet / Strap | Brown leather |
Clasp / Buckle | Push-button tri-fold deployant clasp |
Water Resistance | 3 bar / 3 ATM |
Functions | Hours, minutes, small seconds, power-reserve indication, hacking seconds |
Power Reserve | More than 50 hours |
Country of Manufacture | Japan |
Other | Accuracy: +15 / −5 seconds per day; 24 jewels; 21,600 vibrations per hour; JIS Class 1 magnetic resistance |
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