Certina DS Action Diver ChronovsSeiko Purchase Prospex

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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 Chrono at true scale

DS Action Diver Chrono

Seiko Purchase Prospex at true scale

Purchase Prospex

Diameter

44.6mm

45mm

Lug-to-Lug

52.6mm

47.7mm

lowest

Thickness

16.2mm

13.2mm

lowest

Water Resistance

300m

highest

200m

Power Reserve

n/a

41h

MSRP

$2,219

$755

lowest

Movement

Tissot Valjoux A05.231

Seiko 4R36

Case

5 specs
Diameter
44.6mm
45mm
Thickness
16.17mm
13.2mm
Lug-to-Lug
52.58mm
47.7mm
Lug Width
21mm
n/a
Water Resistance
300m
200m

Movement

2 specs
Caliber
Tissot Valjoux A05.231
Seiko 4R36
Power Reserve
0h
41h

Pricing

1 specs
MSRP
$2,219
$755
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Reviews

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

Certina DS Action Diver Chrono

Owners widely praise the Certina DS Action Diver Chrono for its excellent value and high-end feel, with many considering it one of the best Swiss or Japanese divers under $2000. Reviewers and owners alike highlight its robust build, attractive design, and well-finished case, with some preferring the contrast of the steel version for readability. One owner notes the chronograph totaliser lacks lume, and another finds the 21mm lug width inconvenient for strap changes. The Certina DS Action Diver Chrono is powered by the Tissot Valjoux A05.231 automatic movement and has a 68-hour power reserve, though one owner mentions a low reserve requiring daily winding if not worn extensively. Overall, owners rate the Certina DS Action Diver Chrono highly for its exceptional quality and value at its price point.

Seiko Purchase Prospex

Owners widely praise the beauty of the Seiko Prospex HBB002K1. Some owners question the value proposition at its $750 limited-edition price point, citing the use of a budget movement when Seiko offers newer 6R series calibers. On balance, owners find the Seiko Prospex HBB002K1 beautiful, though some express reservations about its value given the movement choice.

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