Certina DS Action Diver 40.5mm Powermatic 80vsTissot Seastar 1000

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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

Tissot Seastar 1000 at true scale

Seastar 1000

Diameter

40.5mm

40mm

Lug-to-Lug

45.0mm

n/a

Thickness

13.2mm

12.5mm

lowest

Water Resistance

300m

300m

Power Reserve

80h

80h

MSRP

$1,032

$875

lowest

Movement

POWERMATIC 80.611

Tissot Powermatic 80

Case

4 specs
Diameter
40.5mm
40mm
Thickness
13.22mm
12.48mm
Lug-to-Lug
45.01mm
n/a
Lug Width
19mm
20mm

Crystal & Dial

4 specs
AR Coating
n/a
Yes
Dial Color
n/a
Graded grey-black
Indices
n/a
Indexes
Lume
None
Super-LumiNova ®

Movement

1 specs
Caliber
POWERMATIC 80.611
Tissot Powermatic 80

Pricing

1 specs
MSRP
$1,032
$875
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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.

Tissot Seastar 1000

Owners widely praise the Tissot Seastar 1000 for its value, solid build, and 300m water resistance, with reviewers highlighting its comfortable wearability and affordable price point for a sporty diver. Some owners find the bezel difficult to use and note glare from the crystal, while others criticize the lume and bracelet quality, with one owner describing the clasp as flimsy. Accuracy figures for the quartz models are excellent, and the Powermatic 80 movement is considered reliable. Overall, owners and reviewers rate the Tissot Seastar 1000 highly for its strong value proposition as a sporty, affordable everyday watch.

From video reviewers

The 80-hour power reserve from the Powermatic 80 movement is a significant strength. Reviewers did not reach a consensus on any weaknesses.

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