Seaholm Flats ChronographvsSeiko Prospex SPEEDTIMER Mechanical Chronograph
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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 Mechanical Chronograph
Diameter
41mm
42mm
Lug-to-Lug
n/a
49.5mm
Thickness
n/a
14.6mm
Water Resistance
200m
highest
100m
Power Reserve
42h
45h
highest
MSRP
$3,495
$2,500
lowest
Movement
ETA 2894-2
Seiko 8R48
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.
The Seiko Prospex SPEEDTIMER Mechanical Chronograph is praised for its handsome, heritage-inspired design and clean, balanced dial layout, enhanced by an external tachymeter bezel. Reviewers note the adequate caliber 8R48 movement, which features a vertical clutch and column wheel with MEMS technology for durability and precision. The refined bracelet offers improved comfort, and the overall package is considered good value for a well-designed chronograph with an in-house movement. Points to consider include the 4:30 date window and a thickness of 14.6mm, while the 45-hour power reserve is an area for potential improvement. On balance, reviewers rate the Seiko Prospex SPEEDTIMER Mechanical Chronograph highly for its attractive design and solid chronograph functionality at its price point.
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