Certina DS Action GMT Powermatic 80vsOrient 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.

Certina DS Action GMT Powermatic 80 at true scale

DS Action GMT Powermatic 80

Orient Kamasu at true scale

Kamasu

Diameter

41mm

41.8mm

Lug-to-Lug

49.5mm

47mm

lowest

Thickness

13.8mm

12.8mm

lowest

Water Resistance

200m

200m

Power Reserve

80h

highest

40h

MSRP

$1,286

$375

lowest

Movement

POWERMATIC 80.661

Orient F6922

Case

4 specs
Diameter
41mm
41.8mm
Thickness
13.8mm
12.8mm
Lug-to-Lug
49.54mm
47mm
Lug Width
20mm
22mm

Crystal & Dial

1 specs
Dial Color
n/a
Black

Movement

7 specs
Caliber
POWERMATIC 80.661
Orient F6922
Beat Rate
0 vph
21,600 vph
Power Reserve
80h
40h
Jewels
0
22
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
Day-date

Pricing

1 specs
MSRP
$1,286
$375
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Reviews

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

Certina DS Action GMT Powermatic 80

The Certina DS Action GMT Powermatic 80 is widely praised for its value, offering a traveler-style GMT with an 80-hour power reserve and flyer functionality. Owners and reviewers highlight its attractive, modern aesthetic and solid build quality, with one owner calling it a watch they are in love with. The green dial is noted as appealing, and the Powermatic 80 movement is considered fairly accurate. However, some find the 13.8mm thickness chunky, and a few owners report minor issues like a misaligned bezel or end links that do not perfectly align with the case. The bracelet's pin-and-collar sizing system is also mentioned as a missed opportunity. Overall, owners and reviewers rate the Certina DS Action GMT Powermatic 80 highly for its compelling value and true GMT functionality.

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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