Certina DS Action Diver 40.5mm Powermatic 80vsRatio FreeDiver GMT Series

FreeDiver GMT Series
RatioFreeDiver GMT Series

Ref. ratio-freediver-gmt-series-sapphire-stainless-steel-blue-dial-automatic-rtf053-200m-mens-watch·MSRP $170

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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 Diver 40.5mm Powermatic 80 at true scale

DS Action Diver 40.5mm Powermatic 80

Ratio FreeDiver GMT Series at true scale

FreeDiver GMT Series

Diameter

40.5mm

40mm

Lug-to-Lug

45.0mm

n/a

Thickness

13.2mm

lowest

13.6mm

Water Resistance

300m

highest

200m

Power Reserve

80h

highest

40h

MSRP

$1,032

$170

lowest

Movement

POWERMATIC 80.611

Seiko NH34

Case

5 specs
Diameter
40.5mm
40mm
Thickness
13.22mm
13.6mm
Lug-to-Lug
45.01mm
n/a
Lug Width
19mm
20mm
Water Resistance
300m
200m

Movement

2 specs
Caliber
POWERMATIC 80.611
Seiko NH34
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,032
$170
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Reviews

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

Certina DS Action Diver 40.5mm Powermatic 80

Owners and reviewers widely praise the Certina DS Action Diver 40.5mm Powermatic 80 for its exceptional value, robust build quality, and ISO 6425 certification, with many highlighting its precise Powermatic 80.611 movement and excellent legibility. The watch is frequently lauded for its vibrant sunburst dials, clean design with gilt accents, and the smooth action of its engraved ceramic bezel. Some owners note the 40.5mm case's 14mm thickness as substantial, and a few find the end links do not perfectly align with the case, while others report accuracy between 3-6 seconds per day. Overall, owners and reviewers rate the Certina DS Action Diver 40.5mm Powermatic 80 highly for its impressive quality and value proposition in the dive watch market.

Ratio FreeDiver GMT Series

Owners widely praise the Ratio FreeDiver GMT Series for its exceptional value, with multiple users highlighting its sub-$150 price point as a significant draw and one owner calling it their most used watch. The lume is noted as being nearly as good as a Citizen Promaster diver, and the branding details, including the pi symbol on the second hand, are appreciated. One owner also noted the original design and mechanical GMT function impressed them with its looks and feel. Some owners find the design generic and dislike the date window's impact on proportions, while others suggest a Seiko as a more rational choice. The Ratio FreeDiver GMT Series is priced at ₹15k on Amazon India. Overall, owners rate the Ratio FreeDiver GMT Series highly for its outstanding value and impressive lume at its price point.

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