Quick Verdict
On paper the Kamasu offers more per dollar than anything else in this database. Sapphire, 200 m, an in-house hacking automatic and a fully solid bracelet at $235 is a specification no competitor matches. The weak points are luminous performance and after-sales support rather than anything structural.
At a Glance
- Street price
- $235
- Movement type
- Automatic
- Power reserve
- 40 hours
- Case diameter
- 41.8 mm
- Lug-to-lug
- 47 mm
- Crystal
- Sapphire
- Water resistance
- 200 m (656 ft)
Design
Orient works within the established diver vocabulary — a 41.8 mm round case, sloped bezel, applied markers and a sword handset — without copying any single reference. The sunburst blue dial is the visual draw, and it shifts noticeably as the light moves across it.
Movement
The F6922 is designed and produced by Seiko Epson, Orient's parent: 22 jewels, 21,600 vph, hacking and hand-winding, 40 hours of reserve. Orient publishes -15 to +25 seconds per day, a materially tighter window than the -35/+45 Seiko quotes for the 4R36.
Build Quality
Case finishing runs a step above the Seiko 5 Sports, with crisper brushing and a better-defined bevel. The screw-down crown is signed. Note that Orient rates the watch to 200 m but does not certify it to ISO 6425, so it carries no DIVER'S marking.
Dial
Applied indices with a printed chapter ring and a date at three. Legibility is strong in daylight. Orient's luminous compound is adequate rather than notable, and this is the clearest area where Seiko's Prospex line pulls ahead.
Bracelet & Strap
Solid end links, solid links throughout, a stamped clasp with a diver's extension and — unusually at this price — half-links for fine adjustment. The Seiko 5 Sports cannot be sized as precisely.
Comfort & Wearability
A 47 mm lug-to-lug on a 41.8 mm case is well proportioned, and 12.8 mm is slimmer than most 200 m divers. The tapering bracelet helps smaller wrists more than the raw numbers suggest.
Accuracy
Orient's published window of -15 to +25 seconds per day is one of the tighter specifications among affordable Japanese automatics, and the practical implication is a movement less likely to need regulation out of the box.
What we like
What we like
- Sapphire crystal as standard at a price where mineral glass is the norm
- F6922 hacks and hand-winds, with a tighter published accuracy window than Seiko's 4R36
- Solid end links, solid centre links and half-links for fine sizing
- 200 m rating with a screw-down crown
What we don't like
- Luminous material is weaker than Seiko's LumiBrite
- Orient's service network outside Japan is thinner than Seiko's or Citizen's
- Bezel action is firmer than most, which some find stiff
Who Should Buy It?
Anyone who wants the best-specified mechanical watch $250 can buy, and anyone who has ruled out Seiko because of its mineral crystals.
Who Should Skip It?
Skip it if luminous performance matters — Seiko is meaningfully stronger. Skip it if you want a brand with service centres in every major city.
Best Alternatives
Three watches worth weighing up before you commit.
How It Compares
Orient Kamasu
4 categories won
Seiko 5 Sports SRPD55
4 categories won
- Street price
- $235
- $195Winner
- Movement type
- Automatic
- Automatic
- Caliber
- F6922
- 4R36
- Power reserve
- 40 hours
- 41 hoursWinner
- Stated accuracy
- -15 to +25 seconds per day (Orient specification)
- -35 to +45 seconds per day (Seiko specification)
- Case diameter
- 41.8 mm
- 42.5 mm
- Case thickness
- 12.8 mmWinner
- 13.4 mm
- Lug-to-lug
- 47 mm
- 46 mmWinner
- Crystal
- SapphireWinner
- Hardlex mineral
- Water resistance
- 200 m (656 ft)Winner
- 100 m (328 ft)
- Bracelet / strap
- Three-link bracelet with solid end links
- Three-link bracelet with folded end links
- Weight
- 160 g
- 148 gWinner
- Style
- Diver · Sport · Everyday
- Sport · Everyday · Diver
- Recommended wrist
- Medium · Large
- Medium · Large
- Selection Score
- 88 / 100Winner
- 85 / 100
Final Verdict
The Kamasu is the watch that makes the sub-$300 category difficult for everyone else. It is not the most exciting design here, but it is the one where the specification sheet has no obvious gaps.
Specifications
- Brand
- Orient
- Model
- Kamasu
- Reference
- RA-AA0002L19B
- Collection
- Sports Diver
- Street price
- $235
- MSRP
- $350
- Movement type
- Automatic
- Movement
- Orient F6922
- Caliber
- F6922
- Power reserve
- 40 hours
- Stated accuracy
- -15 to +25 seconds per day (Orient specification)
- Balance spring
- Not published
- Case diameter
- 41.8 mm
- Case thickness
- 12.8 mm
- Lug-to-lug
- 47 mm
- Lug width
- 22 mm
- Weight
- 160 g
- Case material
- Stainless steel
- Crystal
- Sapphire
- Water resistance
- 200 m (656 ft)
- Dial colours
- Blue
- Bracelet / strap
- Three-link bracelet with solid end links
- Bracelet material
- Stainless steel
- Clasp
- Folding clasp with diver's extension and half-links
- Date
- Yes
- GMT
- No
- Chronograph
- No
- Style
- Diver · Sport · Everyday
- Recommended wrist
- Medium · Large
- Country of origin
- Japan
- Released
- 2018
- Selection Score
- 88 / 100
Score Breakdown
- 25%24.5
Value
- 20%17.2
Movement
- 15%13.2
Build Quality
- 15%12.9
Design
- 10%8.2
Wearability
- 10%8.5
Features
- 5%3.8
Brand & Ownership
Seven pillars, each rated 0–10 and weighted as shown. The total is the sum of the weighted ratings — the headline number can never disagree with its own breakdown.
Ratings are demo data pending editorial review.
Where to Buy
Selection Time is reader-supported. If you buy through a link on this page we may earn a commission. This never affects our scores or what we recommend.
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Amazon
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Orient USA
$350 · Price checked August 1, 2026
Frequently Asked Questions
Kamasu or Mako III?
Both use the F6922 and are rated to 200 m. The Kamasu adds a sapphire crystal and applied markers; the Mako III uses mineral glass and costs less. The crystal is the deciding difference for most buyers.
Is Orient owned by Seiko?
Orient has been a subsidiary of Seiko Epson since 2017, which is why its movements are produced by Epson.
Can the Kamasu be used for scuba diving?
It is rated to 200 m with a screw-down crown, but Orient does not certify it to ISO 6425. For technical diving, choose a certified watch such as a Seiko Prospex or Tissot Seastar.






