Certina DS-7 ChronographvsSeiko Prospex Speedtimer
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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-7 Chronograph
Prospex Speedtimer
Diameter
41mm
39mm
Lug-to-Lug
47.6mm
45.5mm
lowest
Thickness
12.2mm
lowest
13.3mm
Water Resistance
100m
100m
MSRP
$736
$725
lowest
Movement
G10.212
Seiko V192
Case
4 specsCrystal & Dial
3 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Certina DS-7 Chronograph is praised for its refined case finishing and dial, with one owner finding it wears better than alternatives. Reviewers note its 41mm case, 12.15mm thickness, and quartz G10.212 movement, with the collection offering diverse finishes and dial colors. Some owners find the lugs polarizing, preferring a more traditional design. Overall, owners rate the Certina DS-7 Chronograph highly for its case finishing and dial at the price.
Owners widely praise the Seiko Prospex SPEEDTIMER for its vintage-inspired design and versatility as an everyday watch. Some owners find the 39mm case size comfortable and well-suited for active use. Reviewers note the solar-powered V192 movement offers a six-month power reserve. Criticisms include the watch's thickness, which some find to be between 13-15mm, and the 24-hour subdial. The price point is a recurring point of contention, with some owners questioning the value for a solar quartz chronograph. On balance, owners and reviewers find the Seiko Prospex SPEEDTIMER a capable and attractive watch, with its design being the most frequently cited positive attribute.
The Seiko Prospex SPEEDTIMER's solar movement provides reliable power without battery replacements and accurate timekeeping, with a claimed accuracy of ±15 seconds per month. A notable trade-off is the watch's slightly thicker profile and somewhat lacking lume brightness. Reviewers disagree on whether the bezel action is smooth and clicky, with one reviewer praising it and the other not mentioning it.
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