Manufaktur Waldhoff Atlas GMTvsSeiko Prospex Sea
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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.

Atlas GMT

Prospex Sea
Diameter
41mm
41.7mm
Lug-to-Lug
n/a
49.5mm
Thickness
13.5mm
12.3mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
41h
41h
MSRP
$548
lowest
$595
Movement
Seiko NH34
Seiko 4R35
Case
4 specsCrystal & Dial
4 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners praise the Manufaktur Waldhoff Atlas GMT for its quality and "spec monster" features for an office GMT diver. However, one owner found the 41mm case too large for their wrist, leading them to sell it in favor of smaller case sizes. The watch utilizes a Seiko NH34 automatic movement and offers 300m water resistance. Overall, owners appreciate the Manufaktur Waldhoff Atlas GMT for its impressive specifications and build quality at its price point, though case size can be a personal fit consideration.
The watch features excellent dial legibility due to high-quality Swiss luminous material. The Seiko NH34 GMT movement powers the watch.
Owners widely report the Seiko Prospex Sea is a well-built watch at a fair price, with some finding its 41.7mm case size perfect while others with smaller wrists consider it big, thick, and heavy. Reviewers consistently praise the excellent lume and robust design. One owner notes the bezel action is smoother and more precise than some other Seiko divers. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its value and proven design.
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