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.

DS Action Diver Chrono

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 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
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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