The Orient Mako RA-AA0825S39B is a silver-dial automatic diver in Orient’s popular Mako / Kamasu sports line. It uses the in-house F6922 movement with day and date, sapphire crystal, a unidirectional aluminium-insert bezel, a screw-down crown, and 200 m water resistance on a stainless steel bracelet.
The 41.8 mm case (46.8 mm lug-to-lug, 22 mm lugs) is the same generation as other RA-AA082 references: compact enough for daily wear, robust enough for swimming and active use. The silver dial keeps the watch versatile for work and weekend.
Why Choose the Mako RA-AA0825S39B
- Proven Mako / Kamasu case — 41.8 mm diameter, 12.8 mm thick, 46.8 mm lug-to-lug, 22 mm lug width.
- Silver dial — a clean, everyday colourway that pairs with the steel bracelet.
- F6922 automatic — hand-wind and hack, day and date at 3 o’clock, about 40 hours of power reserve, 22 jewels at 21,600 vph.
- Sapphire crystal — scratch-resistant front glass.
- 200 m water resistance — screw-down crown, solid screw case back, unidirectional 120-click bezel (not ISO professional dive certification equipment).
- Steel bracelet — foldover clasp with safety; 22 mm lugs if you later swap straps.
Who It Suits
Choose this reference if you want a Japan-made automatic diver around 42 mm with a silver dial rather than blue, red, or limited-edition colourways. It works as a daily sports watch for commuting, travel, and swimming.
Technical Specifications
- Brand / collection: Orient Sports Mako (Kamasu / RA-AA082 generation)
- Reference: RA-AA0825S39B (also listed as RA-AA0825S)
- Movement: Orient caliber F6922 automatic (hand-winding, hacking)
- Power reserve: Approximately 40 hours
- Jewels / beat rate: 22 jewels, 21,600 vph
- Complications: Hours, minutes, seconds, day and date
- Case: Stainless steel, 41.8 mm diameter (without crown)
- Thickness: 12.8 mm
- Lug-to-lug: 46.8 mm
- Lug width: 22 mm
- Crystal: Sapphire
- Dial: Silver, luminous hands and markers, day-date at 3 o’clock
- Bezel: Unidirectional, 120-click, aluminium insert
- Crown: Screw-down
- Case back: Solid screw-down
- Bracelet: Stainless steel, folded end links
- Water resistance: 200 metres
- Origin: Japan-made Orient automatic
Wearing and Care Notes
Fully screw the crown down before any water exposure. Turn the unidirectional bezel anti-clockwise only for elapsed-time tracking. Hand-wind gently if the watch has stopped after sitting idle. Rinse with fresh water after saltwater use and dry the case and bracelet thoroughly.
Frequently Asked Questions
What movement does the Orient Mako RA-AA0825S39B use?
It uses Orient’s in-house caliber F6922 automatic with hand-winding, hacking, day and date, and about 40 hours of power reserve.
What is the water resistance?
200 metres with a screw-down crown and unidirectional timing bezel. Suitable for swimming and active water use; not marketed here as ISO professional dive certification equipment.
How big is the case?
41.8 mm without the crown, 12.8 mm thick, 46.8 mm lug-to-lug, 22 mm lug width.
Does it have a sapphire crystal?
Yes. The RA-AA0825S39B uses sapphire crystal on the front.
How does this differ from Mako 40?
This RA-AA082 generation is the larger 41.8 mm Kamasu / Mako III case with F6922 day-date. Mako 40 (RA-AC0Q) is 39.9 mm with F6722 and date only.
Where can I buy the Orient Mako RA-AA0825S39B in Australia?
When in stock, Chronospride lists this reference for Australian buyers with inspected authentic stock and local dispatch.
Authentic stock, inspected before dispatch. Free shipping Australia-wide on eligible orders. Covered by Chronospride’s 12 months warranty, handled by our team. See our authenticity and warranty page.
| Case-Size | 41.8mm |
|---|---|
| Band-Width | 22mm |
| Lug-Width | 22mm |
| Lug to lug size | 46.8mm |
| Case Thickness | 12.8mm |
