Phoibos Reef MastervsOrient Kamasu

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Phoibos Reef Master at true scale

Reef Master

Orient Kamasu at true scale

Kamasu

Diameter

42mm

41.8mm

Lug-to-Lug

48mm

47mm

lowest

Thickness

13mm

12.8mm

lowest

Water Resistance

200m

200m

Power Reserve

n/a

40h

MSRP

$335

lowest

$375

Movement

Seiko NH38

Orient F6922

Case

3 specs
Diameter
42mm
41.8mm
Thickness
13mm
12.8mm
Lug-to-Lug
48mm
47mm

Crystal & Dial

3 specs
AR Coating
Yes
n/a
Dial Color
Green
Black
Lume
Super-LumiNova
None

Movement

7 specs
Caliber
Seiko NH38
Orient F6922
Beat Rate
0 vph
21,600 vph
Power Reserve
0h
40h
Jewels
0
22
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
Day-date

Pricing

1 specs
MSRP
$335
$375
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Phoibos Reef Master

Owners widely praise the Phoibos Reef Master for its exceptional value, with many highlighting the sapphire crystal, AR coating, and extensive BGW9 lume. The DLC coating's scratch resistance and the included leather and rubber straps are also noted positives. Some owners find the 42mm case surprisingly comfortable and not overly bulky. The Shamrock Green dial and texture, as well as the recessed sandwich dial and lumed bezel creating a 3D effect, have received specific praise. Accuracy is reported as good, with one owner noting +-2 sec/day. Criticisms include a rough bezel action that may require lubrication, a disappointing basic folding clasp, and a date window that is too small. The watch's logo has been described as "ugly AF" by some commenters. Overall, owners rate the Phoibos Reef Master highly for its impressive feature set and build quality at its price point.

From video reviewers

The Reef Master offers excellent value for its price point. Reviewers noted concerns regarding the bracelet quality.

Orient Kamasu

Owners widely praise the Orient Kamasu for its exceptional value, robust build quality suitable for daily wear, and appealing design features like applied indices and a sunburst dial. Reviewers and owners alike highlight its strong lume, sapphire crystal, hacking and hand-winding F6922 movement, and comfortable, well-proportioned case. However, multiple sources note that the bezel exhibits noticeable play and can sometimes become sticky, while some owners find the bracelet's hollow end links and pressed clasp to be a weak point, with one owner reporting a rattle and another finding the crown difficult to grip. On balance, owners and reviewers rate the Orient Kamasu highly for its impressive finishing and features for the price point, making it a standout value diver.

From video reviewers

The Orient Kamasu's compact package makes it suitable for smaller wrists without compromising wrist presence. A notable weakness is that the bracelet is decent but may have some issues, although the reviewer does not elaborate. Reviewers disagree on the value for money, with one highlighting the affordable price and in-house movement, while the other implies a trade-off in value.

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