Dumoreau Monopusher 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.
Monopusher Chronograph
Prospex Speedtimer
Diameter
40mm
39mm
Lug-to-Lug
46mm
45.5mm
lowest
Thickness
12.5mm
lowest
13.3mm
Water Resistance
100m
100m
Power Reserve
63h
n/a
MSRP
n/a
$725
Movement
Sellita SW510
Seiko V192
Case
3 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Dumoreau Monopusher Chronograph for its thinness and attractive finishing on the manual-wind Sellita SW510 movement, with the blue dial variant noted as a limited edition feature. One owner finds the £1,250 price tag too high, seeking alternatives in a lower price bracket. Overall, owners appreciate the Dumoreau Monopusher Chronograph's refined finishing and wearability, though some question its value proposition at the current price point.
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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