Seaholm Flats 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.
Flats Chronograph
Prospex Speedtimer
Diameter
41mm
39mm
Lug-to-Lug
n/a
45.5mm
Thickness
n/a
13.3mm
Water Resistance
200m
highest
100m
Power Reserve
42h
n/a
MSRP
$3,495
$725
lowest
Movement
ETA 2894-2
Seiko V192
Case
5 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Seaholm Flats Chronograph owners report robust build quality with features designed for shock and magnetism resistance. One owner found the watch bulky and sold it at half its retail price after acquiring it on the grey market. Overall, owners rate the Seaholm Flats Chronograph based on its build quality and value, though some find its dimensions challenging.
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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